20447815860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{887}}^1\times {\mathrm{1439}}^1$

素因数の和:2430

約数の個数: 144

約数和(自身を含む): 62836300800

約数和(自身を除く): 42388484940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 887, 890, 1068, 1335, 1439, 1602, 1774, 1780, 2661, 2670, 2878, 3204, 3548, 4005, 4317, 4435, 5322, 5340, 5756, 7195, 7983, 8010, 8634, 8870, 10644, 12951, 13305, 14390, 15966, 16020, 17268, 17740, 21585, 25902, 26610, 28780, 31932, 39915, 43170, 51804, 53220, 64755, 78943, 79830, 86340, 128071, 129510, 157886, 159660, 236829, 256142, 259020, 315772, 384213, 394715, 473658, 512284, 640355, 710487, 768426, 789430, 947316, 1152639, 1184145, 1276393, 1280710, 1420974, 1536852, 1578860, 1921065, 2305278, 2368290, 2552786, 2561420, 2841948, 3552435, 3829179, 3842130, 4610556, 4736580, 5105572, 5763195, 6381965, 7104870, 7658358, 7684260, 11487537, 11526390, 12763930, 14209740, 15316716, 19145895, 22975074, 23052780, 25527860, 38291790, 45950148, 57437685, 76583580, 113598977, 114875370, 227197954, 229750740, 340796931, 454395908, 567994885, 681593862, 1022390793, 1135989770, 1363187724, 1703984655, 2044781586, 2271979540, 3407969310, 4089563172, 5111953965, 6815938620, 10223907930, 20447815860]

約数ペア:

[(1, 20447815860), (2, 10223907930), (3, 6815938620), (4, 5111953965), (5, 4089563172), (6, 3407969310), (9, 2271979540), (10, 2044781586), (12, 1703984655), (15, 1363187724), (18, 1135989770), (20, 1022390793), (30, 681593862), (36, 567994885), (45, 454395908), (60, 340796931), (89, 229750740), (90, 227197954), (178, 114875370), (180, 113598977), (267, 76583580), (356, 57437685), (445, 45950148), (534, 38291790), (801, 25527860), (887, 23052780), (890, 22975074), (1068, 19145895), (1335, 15316716), (1439, 14209740), (1602, 12763930), (1774, 11526390), (1780, 11487537), (2661, 7684260), (2670, 7658358), (2878, 7104870), (3204, 6381965), (3548, 5763195), (4005, 5105572), (4317, 4736580), (4435, 4610556), (5322, 3842130), (5340, 3829179), (5756, 3552435), (7195, 2841948), (7983, 2561420), (8010, 2552786), (8634, 2368290), (8870, 2305278), (10644, 1921065), (12951, 1578860), (13305, 1536852), (14390, 1420974), (15966, 1280710), (16020, 1276393), (17268, 1184145), (17740, 1152639), (21585, 947316), (25902, 789430), (26610, 768426), (28780, 710487), (31932, 640355), (39915, 512284), (43170, 473658), (51804, 394715), (53220, 384213), (64755, 315772), (78943, 259020), (79830, 256142), (86340, 236829), (128071, 159660), (129510, 157886)]