878662980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{19763}}^1$

素因数の和:19810

約数の個数: 144

約数和(自身を含む): 3021520320

約数和(自身を除く): 2142857340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 468, 494, 570, 585, 684, 741, 780, 855, 988, 1140, 1170, 1235, 1482, 1710, 2223, 2340, 2470, 2964, 3420, 3705, 4446, 4940, 7410, 8892, 11115, 14820, 19763, 22230, 39526, 44460, 59289, 79052, 98815, 118578, 177867, 197630, 237156, 256919, 296445, 355734, 375497, 395260, 513838, 592890, 711468, 750994, 770757, 889335, 1027676, 1126491, 1185780, 1284595, 1501988, 1541514, 1778670, 1877485, 2252982, 2312271, 2569190, 3083028, 3379473, 3557340, 3754970, 3853785, 4505964, 4624542, 4881461, 5138380, 5632455, 6758946, 7509940, 7707570, 9249084, 9762922, 11264910, 11561355, 13517892, 14644383, 15415140, 16897365, 19525844, 22529820, 23122710, 24407305, 29288766, 33794730, 43933149, 46245420, 48814610, 58577532, 67589460, 73221915, 87866298, 97629220, 146443830, 175732596, 219665745, 292887660, 439331490, 878662980]

約数ペア:

[(1, 878662980), (2, 439331490), (3, 292887660), (4, 219665745), (5, 175732596), (6, 146443830), (9, 97629220), (10, 87866298), (12, 73221915), (13, 67589460), (15, 58577532), (18, 48814610), (19, 46245420), (20, 43933149), (26, 33794730), (30, 29288766), (36, 24407305), (38, 23122710), (39, 22529820), (45, 19525844), (52, 16897365), (57, 15415140), (60, 14644383), (65, 13517892), (76, 11561355), (78, 11264910), (90, 9762922), (95, 9249084), (114, 7707570), (117, 7509940), (130, 6758946), (156, 5632455), (171, 5138380), (180, 4881461), (190, 4624542), (195, 4505964), (228, 3853785), (234, 3754970), (247, 3557340), (260, 3379473), (285, 3083028), (342, 2569190), (380, 2312271), (390, 2252982), (468, 1877485), (494, 1778670), (570, 1541514), (585, 1501988), (684, 1284595), (741, 1185780), (780, 1126491), (855, 1027676), (988, 889335), (1140, 770757), (1170, 750994), (1235, 711468), (1482, 592890), (1710, 513838), (2223, 395260), (2340, 375497), (2470, 355734), (2964, 296445), (3420, 256919), (3705, 237156), (4446, 197630), (4940, 177867), (7410, 118578), (8892, 98815), (11115, 79052), (14820, 59289), (19763, 44460), (22230, 39526)]