643778240

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 224

約数和(自身を含む): 1847721984

約数和(自身を除く): 1203943744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 73, 80, 112, 124, 127, 140, 146, 155, 160, 217, 224, 248, 254, 280, 292, 310, 320, 365, 434, 448, 496, 508, 511, 560, 584, 620, 635, 730, 868, 889, 992, 1016, 1022, 1085, 1120, 1168, 1240, 1270, 1460, 1736, 1778, 1984, 2032, 2044, 2170, 2240, 2263, 2336, 2480, 2540, 2555, 2920, 3472, 3556, 3937, 4064, 4088, 4340, 4445, 4526, 4672, 4960, 5080, 5110, 5840, 6944, 7112, 7874, 8128, 8176, 8680, 8890, 9052, 9271, 9920, 10160, 10220, 11315, 11680, 13888, 14224, 15748, 15841, 16352, 17360, 17780, 18104, 18542, 19685, 20320, 20440, 22630, 23360, 27559, 28448, 31496, 31682, 32704, 34720, 35560, 36208, 37084, 39370, 40640, 40880, 45260, 46355, 55118, 56896, 62992, 63364, 64897, 69440, 71120, 72416, 74168, 78740, 79205, 81760, 90520, 92710, 110236, 125984, 126728, 129794, 137795, 142240, 144832, 148336, 157480, 158410, 163520, 181040, 185420, 220472, 251968, 253456, 259588, 275590, 284480, 287401, 296672, 314960, 316820, 324485, 362080, 370840, 440944, 506912, 519176, 551180, 574802, 593344, 629920, 633640, 648970, 724160, 741680, 881888, 1013824, 1038352, 1102360, 1149604, 1259840, 1267280, 1297940, 1437005, 1483360, 1763776, 2011807, 2076704, 2204720, 2299208, 2534560, 2595880, 2874010, 2966720, 4023614, 4153408, 4409440, 4598416, 5069120, 5191760, 5748020, 8047228, 8818880, 9196832, 10059035, 10383520, 11496040, 16094456, 18393664, 20118070, 20767040, 22992080, 32188912, 40236140, 45984160, 64377824, 80472280, 91968320, 128755648, 160944560, 321889120, 643778240]

約数ペア:

[(1, 643778240), (2, 321889120), (4, 160944560), (5, 128755648), (7, 91968320), (8, 80472280), (10, 64377824), (14, 45984160), (16, 40236140), (20, 32188912), (28, 22992080), (31, 20767040), (32, 20118070), (35, 18393664), (40, 16094456), (56, 11496040), (62, 10383520), (64, 10059035), (70, 9196832), (73, 8818880), (80, 8047228), (112, 5748020), (124, 5191760), (127, 5069120), (140, 4598416), (146, 4409440), (155, 4153408), (160, 4023614), (217, 2966720), (224, 2874010), (248, 2595880), (254, 2534560), (280, 2299208), (292, 2204720), (310, 2076704), (320, 2011807), (365, 1763776), (434, 1483360), (448, 1437005), (496, 1297940), (508, 1267280), (511, 1259840), (560, 1149604), (584, 1102360), (620, 1038352), (635, 1013824), (730, 881888), (868, 741680), (889, 724160), (992, 648970), (1016, 633640), (1022, 629920), (1085, 593344), (1120, 574802), (1168, 551180), (1240, 519176), (1270, 506912), (1460, 440944), (1736, 370840), (1778, 362080), (1984, 324485), (2032, 316820), (2044, 314960), (2170, 296672), (2240, 287401), (2263, 284480), (2336, 275590), (2480, 259588), (2540, 253456), (2555, 251968), (2920, 220472), (3472, 185420), (3556, 181040), (3937, 163520), (4064, 158410), (4088, 157480), (4340, 148336), (4445, 144832), (4526, 142240), (4672, 137795), (4960, 129794), (5080, 126728), (5110, 125984), (5840, 110236), (6944, 92710), (7112, 90520), (7874, 81760), (8128, 79205), (8176, 78740), (8680, 74168), (8890, 72416), (9052, 71120), (9271, 69440), (9920, 64897), (10160, 63364), (10220, 62992), (11315, 56896), (11680, 55118), (13888, 46355), (14224, 45260), (15748, 40880), (15841, 40640), (16352, 39370), (17360, 37084), (17780, 36208), (18104, 35560), (18542, 34720), (19685, 32704), (20320, 31682), (20440, 31496), (22630, 28448), (23360, 27559)]