81665654140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{379}}^2$

素因数の和:936

約数の個数: 144

約数和(自身を含む): 204403820544

約数和(自身を除く): 122738166404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 131, 140, 155, 217, 262, 310, 379, 434, 524, 620, 655, 758, 868, 917, 1085, 1310, 1516, 1834, 1895, 2170, 2620, 2653, 3668, 3790, 4061, 4340, 4585, 5306, 7580, 8122, 9170, 10612, 11749, 13265, 16244, 18340, 20305, 23498, 26530, 28427, 40610, 46996, 49649, 53060, 56854, 58745, 81220, 82243, 99298, 113708, 117490, 142135, 143641, 164486, 198596, 234980, 248245, 284270, 287282, 328972, 347543, 411215, 496490, 568540, 574564, 695086, 718205, 822430, 992980, 1005487, 1390172, 1436410, 1539119, 1644860, 1737715, 2010974, 2872820, 3078238, 3475430, 4021948, 4452871, 5027435, 6156476, 6950860, 7695595, 8905742, 10054870, 10773833, 15391190, 17811484, 18816971, 20109740, 21547666, 22264355, 30782380, 31170097, 37633942, 43095332, 44528710, 53869165, 62340194, 75267884, 89057420, 94084855, 107738330, 124680388, 131718797, 155850485, 188169710, 215476660, 263437594, 311700970, 376339420, 526875188, 583326101, 623401940, 658593985, 1166652202, 1317187970, 2333304404, 2634375940, 2916630505, 4083282707, 5833261010, 8166565414, 11666522020, 16333130828, 20416413535, 40832827070, 81665654140]

約数ペア:

[(1, 81665654140), (2, 40832827070), (4, 20416413535), (5, 16333130828), (7, 11666522020), (10, 8166565414), (14, 5833261010), (20, 4083282707), (28, 2916630505), (31, 2634375940), (35, 2333304404), (62, 1317187970), (70, 1166652202), (124, 658593985), (131, 623401940), (140, 583326101), (155, 526875188), (217, 376339420), (262, 311700970), (310, 263437594), (379, 215476660), (434, 188169710), (524, 155850485), (620, 131718797), (655, 124680388), (758, 107738330), (868, 94084855), (917, 89057420), (1085, 75267884), (1310, 62340194), (1516, 53869165), (1834, 44528710), (1895, 43095332), (2170, 37633942), (2620, 31170097), (2653, 30782380), (3668, 22264355), (3790, 21547666), (4061, 20109740), (4340, 18816971), (4585, 17811484), (5306, 15391190), (7580, 10773833), (8122, 10054870), (9170, 8905742), (10612, 7695595), (11749, 6950860), (13265, 6156476), (16244, 5027435), (18340, 4452871), (20305, 4021948), (23498, 3475430), (26530, 3078238), (28427, 2872820), (40610, 2010974), (46996, 1737715), (49649, 1644860), (53060, 1539119), (56854, 1436410), (58745, 1390172), (81220, 1005487), (82243, 992980), (99298, 822430), (113708, 718205), (117490, 695086), (142135, 574564), (143641, 568540), (164486, 496490), (198596, 411215), (234980, 347543), (248245, 328972), (284270, 287282)]