402774320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^3$

素因数の和:132

約数の個数: 120

約数和(自身を含む): 1047825792

約数和(自身を除く): 645051472

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 169, 208, 248, 260, 310, 338, 403, 496, 520, 620, 676, 806, 845, 961, 1040, 1240, 1352, 1612, 1690, 1922, 2015, 2480, 2704, 3224, 3380, 3844, 4030, 4805, 5239, 6448, 6760, 7688, 8060, 9610, 10478, 12493, 13520, 15376, 16120, 19220, 20956, 24986, 26195, 29791, 32240, 38440, 41912, 49972, 52390, 59582, 62465, 76880, 83824, 99944, 104780, 119164, 124930, 148955, 162409, 199888, 209560, 238328, 249860, 297910, 324818, 387283, 419120, 476656, 499720, 595820, 649636, 774566, 812045, 999440, 1191640, 1299272, 1549132, 1624090, 1936415, 2383280, 2598544, 3098264, 3248180, 3872830, 5034679, 6196528, 6496360, 7745660, 10069358, 12992720, 15491320, 20138716, 25173395, 30982640, 40277432, 50346790, 80554864, 100693580, 201387160, 402774320]

約数ペア:

[(1, 402774320), (2, 201387160), (4, 100693580), (5, 80554864), (8, 50346790), (10, 40277432), (13, 30982640), (16, 25173395), (20, 20138716), (26, 15491320), (31, 12992720), (40, 10069358), (52, 7745660), (62, 6496360), (65, 6196528), (80, 5034679), (104, 3872830), (124, 3248180), (130, 3098264), (155, 2598544), (169, 2383280), (208, 1936415), (248, 1624090), (260, 1549132), (310, 1299272), (338, 1191640), (403, 999440), (496, 812045), (520, 774566), (620, 649636), (676, 595820), (806, 499720), (845, 476656), (961, 419120), (1040, 387283), (1240, 324818), (1352, 297910), (1612, 249860), (1690, 238328), (1922, 209560), (2015, 199888), (2480, 162409), (2704, 148955), (3224, 124930), (3380, 119164), (3844, 104780), (4030, 99944), (4805, 83824), (5239, 76880), (6448, 62465), (6760, 59582), (7688, 52390), (8060, 49972), (9610, 41912), (10478, 38440), (12493, 32240), (13520, 29791), (15376, 26195), (16120, 24986), (19220, 20956)]