155311240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:695

約数の個数: 128

約数和(自身を含む): 427161600

約数和(自身を除く): 271850360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 31, 35, 40, 56, 58, 62, 70, 116, 124, 140, 145, 155, 203, 217, 232, 248, 280, 290, 310, 406, 434, 580, 617, 620, 812, 868, 899, 1015, 1085, 1160, 1234, 1240, 1624, 1736, 1798, 2030, 2170, 2468, 3085, 3596, 4060, 4319, 4340, 4495, 4936, 6170, 6293, 7192, 8120, 8638, 8680, 8990, 12340, 12586, 17276, 17893, 17980, 19127, 21595, 24680, 25172, 31465, 34552, 35786, 35960, 38254, 43190, 50344, 62930, 71572, 76508, 86380, 89465, 95635, 125251, 125860, 133889, 143144, 153016, 172760, 178930, 191270, 250502, 251720, 267778, 357860, 382540, 501004, 535556, 554683, 626255, 669445, 715720, 765080, 1002008, 1071112, 1109366, 1252510, 1338890, 2218732, 2505020, 2677780, 2773415, 3882781, 4437464, 5010040, 5355560, 5546830, 7765562, 11093660, 15531124, 19413905, 22187320, 31062248, 38827810, 77655620, 155311240]

約数ペア:

[(1, 155311240), (2, 77655620), (4, 38827810), (5, 31062248), (7, 22187320), (8, 19413905), (10, 15531124), (14, 11093660), (20, 7765562), (28, 5546830), (29, 5355560), (31, 5010040), (35, 4437464), (40, 3882781), (56, 2773415), (58, 2677780), (62, 2505020), (70, 2218732), (116, 1338890), (124, 1252510), (140, 1109366), (145, 1071112), (155, 1002008), (203, 765080), (217, 715720), (232, 669445), (248, 626255), (280, 554683), (290, 535556), (310, 501004), (406, 382540), (434, 357860), (580, 267778), (617, 251720), (620, 250502), (812, 191270), (868, 178930), (899, 172760), (1015, 153016), (1085, 143144), (1160, 133889), (1234, 125860), (1240, 125251), (1624, 95635), (1736, 89465), (1798, 86380), (2030, 76508), (2170, 71572), (2468, 62930), (3085, 50344), (3596, 43190), (4060, 38254), (4319, 35960), (4340, 35786), (4495, 34552), (4936, 31465), (6170, 25172), (6293, 24680), (7192, 21595), (8120, 19127), (8638, 17980), (8680, 17893), (8990, 17276), (12340, 12586)]