221096960

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:262

約数の個数: 176

約数和(自身を含む): 628838400

約数和(自身を除く): 407741440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 199, 217, 224, 248, 256, 280, 310, 320, 398, 434, 448, 496, 512, 560, 620, 640, 796, 868, 896, 992, 995, 1024, 1085, 1120, 1240, 1280, 1393, 1592, 1736, 1792, 1984, 1990, 2170, 2240, 2480, 2560, 2786, 3184, 3472, 3584, 3968, 3980, 4340, 4480, 4960, 5120, 5572, 6169, 6368, 6944, 6965, 7168, 7936, 7960, 8680, 8960, 9920, 11144, 12338, 12736, 13888, 13930, 15872, 15920, 17360, 17920, 19840, 22288, 24676, 25472, 27776, 27860, 30845, 31744, 31840, 34720, 35840, 39680, 43183, 44576, 49352, 50944, 55552, 55720, 61690, 63680, 69440, 79360, 86366, 89152, 98704, 101888, 111104, 111440, 123380, 127360, 138880, 158720, 172732, 178304, 197408, 203776, 215915, 222208, 222880, 246760, 254720, 277760, 345464, 356608, 394816, 431830, 445760, 493520, 509440, 555520, 690928, 713216, 789632, 863660, 891520, 987040, 1018880, 1111040, 1381856, 1426432, 1579264, 1727320, 1783040, 1974080, 2763712, 3158528, 3454640, 3566080, 3948160, 5527424, 6317056, 6909280, 7132160, 7896320, 11054848, 13818560, 15792640, 22109696, 27637120, 31585280, 44219392, 55274240, 110548480, 221096960]

約数ペア:

[(1, 221096960), (2, 110548480), (4, 55274240), (5, 44219392), (7, 31585280), (8, 27637120), (10, 22109696), (14, 15792640), (16, 13818560), (20, 11054848), (28, 7896320), (31, 7132160), (32, 6909280), (35, 6317056), (40, 5527424), (56, 3948160), (62, 3566080), (64, 3454640), (70, 3158528), (80, 2763712), (112, 1974080), (124, 1783040), (128, 1727320), (140, 1579264), (155, 1426432), (160, 1381856), (199, 1111040), (217, 1018880), (224, 987040), (248, 891520), (256, 863660), (280, 789632), (310, 713216), (320, 690928), (398, 555520), (434, 509440), (448, 493520), (496, 445760), (512, 431830), (560, 394816), (620, 356608), (640, 345464), (796, 277760), (868, 254720), (896, 246760), (992, 222880), (995, 222208), (1024, 215915), (1085, 203776), (1120, 197408), (1240, 178304), (1280, 172732), (1393, 158720), (1592, 138880), (1736, 127360), (1792, 123380), (1984, 111440), (1990, 111104), (2170, 101888), (2240, 98704), (2480, 89152), (2560, 86366), (2786, 79360), (3184, 69440), (3472, 63680), (3584, 61690), (3968, 55720), (3980, 55552), (4340, 50944), (4480, 49352), (4960, 44576), (5120, 43183), (5572, 39680), (6169, 35840), (6368, 34720), (6944, 31840), (6965, 31744), (7168, 30845), (7936, 27860), (7960, 27776), (8680, 25472), (8960, 24676), (9920, 22288), (11144, 19840), (12338, 17920), (12736, 17360), (13888, 15920), (13930, 15872)]