313721240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{769}}^1$

素因数の和:865

約数の個数: 128

約数和(自身を含む): 851558400

約数和(自身を除く): 537837160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 47, 56, 62, 70, 94, 124, 140, 155, 188, 217, 235, 248, 280, 310, 329, 376, 434, 470, 620, 658, 769, 868, 940, 1085, 1240, 1316, 1457, 1538, 1645, 1736, 1880, 2170, 2632, 2914, 3076, 3290, 3845, 4340, 5383, 5828, 6152, 6580, 7285, 7690, 8680, 10199, 10766, 11656, 13160, 14570, 15380, 20398, 21532, 23839, 26915, 29140, 30760, 36143, 40796, 43064, 47678, 50995, 53830, 58280, 72286, 81592, 95356, 101990, 107660, 119195, 144572, 166873, 180715, 190712, 203980, 215320, 238390, 253001, 289144, 333746, 361430, 407960, 476780, 506002, 667492, 722860, 834365, 953560, 1012004, 1120433, 1265005, 1334984, 1445720, 1668730, 2024008, 2240866, 2530010, 3337460, 4481732, 5060020, 5602165, 6674920, 7843031, 8963464, 10120040, 11204330, 15686062, 22408660, 31372124, 39215155, 44817320, 62744248, 78430310, 156860620, 313721240]

約数ペア:

[(1, 313721240), (2, 156860620), (4, 78430310), (5, 62744248), (7, 44817320), (8, 39215155), (10, 31372124), (14, 22408660), (20, 15686062), (28, 11204330), (31, 10120040), (35, 8963464), (40, 7843031), (47, 6674920), (56, 5602165), (62, 5060020), (70, 4481732), (94, 3337460), (124, 2530010), (140, 2240866), (155, 2024008), (188, 1668730), (217, 1445720), (235, 1334984), (248, 1265005), (280, 1120433), (310, 1012004), (329, 953560), (376, 834365), (434, 722860), (470, 667492), (620, 506002), (658, 476780), (769, 407960), (868, 361430), (940, 333746), (1085, 289144), (1240, 253001), (1316, 238390), (1457, 215320), (1538, 203980), (1645, 190712), (1736, 180715), (1880, 166873), (2170, 144572), (2632, 119195), (2914, 107660), (3076, 101990), (3290, 95356), (3845, 81592), (4340, 72286), (5383, 58280), (5828, 53830), (6152, 50995), (6580, 47678), (7285, 43064), (7690, 40796), (8680, 36143), (10199, 30760), (10766, 29140), (11656, 26915), (13160, 23839), (14570, 21532), (15380, 20398)]