391546120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:699

約数の個数: 128

約数和(自身を含む): 1054310400

約数和(自身を除く): 662764280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 79, 124, 140, 155, 158, 217, 248, 280, 310, 316, 395, 434, 553, 571, 620, 632, 790, 868, 1085, 1106, 1142, 1240, 1580, 1736, 2170, 2212, 2284, 2449, 2765, 2855, 3160, 3997, 4340, 4424, 4568, 4898, 5530, 5710, 7994, 8680, 9796, 11060, 11420, 12245, 15988, 17143, 17701, 19592, 19985, 22120, 22840, 24490, 31976, 34286, 35402, 39970, 45109, 48980, 68572, 70804, 79940, 85715, 88505, 90218, 97960, 123907, 137144, 141608, 159880, 171430, 177010, 180436, 225545, 247814, 315763, 342860, 354020, 360872, 451090, 495628, 619535, 631526, 685720, 708040, 902180, 991256, 1239070, 1263052, 1398379, 1578815, 1804360, 2478140, 2526104, 2796758, 3157630, 4956280, 5593516, 6315260, 6991895, 9788653, 11187032, 12630520, 13983790, 19577306, 27967580, 39154612, 48943265, 55935160, 78309224, 97886530, 195773060, 391546120]

約数ペア:

[(1, 391546120), (2, 195773060), (4, 97886530), (5, 78309224), (7, 55935160), (8, 48943265), (10, 39154612), (14, 27967580), (20, 19577306), (28, 13983790), (31, 12630520), (35, 11187032), (40, 9788653), (56, 6991895), (62, 6315260), (70, 5593516), (79, 4956280), (124, 3157630), (140, 2796758), (155, 2526104), (158, 2478140), (217, 1804360), (248, 1578815), (280, 1398379), (310, 1263052), (316, 1239070), (395, 991256), (434, 902180), (553, 708040), (571, 685720), (620, 631526), (632, 619535), (790, 495628), (868, 451090), (1085, 360872), (1106, 354020), (1142, 342860), (1240, 315763), (1580, 247814), (1736, 225545), (2170, 180436), (2212, 177010), (2284, 171430), (2449, 159880), (2765, 141608), (2855, 137144), (3160, 123907), (3997, 97960), (4340, 90218), (4424, 88505), (4568, 85715), (4898, 79940), (5530, 70804), (5710, 68572), (7994, 48980), (8680, 45109), (9796, 39970), (11060, 35402), (11420, 34286), (12245, 31976), (15988, 24490), (17143, 22840), (17701, 22120), (19592, 19985)]