21408918440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{653}}^1\times {\mathrm{9007}}^1$

素因数の和:9691

約数の個数: 128

約数和(自身を含む): 59383618560

約数和(自身を除く): 37974700120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 653, 728, 910, 1306, 1820, 2612, 3265, 3640, 4571, 5224, 6530, 8489, 9007, 9142, 13060, 16978, 18014, 18284, 22855, 26120, 33956, 36028, 36568, 42445, 45035, 45710, 59423, 63049, 67912, 72056, 84890, 90070, 91420, 117091, 118846, 126098, 169780, 180140, 182840, 234182, 237692, 252196, 297115, 315245, 339560, 360280, 468364, 475384, 504392, 585455, 594230, 630490, 819637, 936728, 1170910, 1188460, 1260980, 1639274, 2341820, 2376920, 2521960, 3278548, 4098185, 4683640, 5881571, 6557096, 8196370, 11763142, 16392740, 23526284, 29407855, 32785480, 41170997, 47052568, 58815710, 76460423, 82341994, 117631420, 152920846, 164683988, 205854985, 235262840, 305841692, 329367976, 382302115, 411709970, 535222961, 611683384, 764604230, 823419940, 1070445922, 1529208460, 1646839880, 2140891844, 2676114805, 3058416920, 4281783688, 5352229610, 10704459220, 21408918440]

約数ペア:

[(1, 21408918440), (2, 10704459220), (4, 5352229610), (5, 4281783688), (7, 3058416920), (8, 2676114805), (10, 2140891844), (13, 1646839880), (14, 1529208460), (20, 1070445922), (26, 823419940), (28, 764604230), (35, 611683384), (40, 535222961), (52, 411709970), (56, 382302115), (65, 329367976), (70, 305841692), (91, 235262840), (104, 205854985), (130, 164683988), (140, 152920846), (182, 117631420), (260, 82341994), (280, 76460423), (364, 58815710), (455, 47052568), (520, 41170997), (653, 32785480), (728, 29407855), (910, 23526284), (1306, 16392740), (1820, 11763142), (2612, 8196370), (3265, 6557096), (3640, 5881571), (4571, 4683640), (5224, 4098185), (6530, 3278548), (8489, 2521960), (9007, 2376920), (9142, 2341820), (13060, 1639274), (16978, 1260980), (18014, 1188460), (18284, 1170910), (22855, 936728), (26120, 819637), (33956, 630490), (36028, 594230), (36568, 585455), (42445, 504392), (45035, 475384), (45710, 468364), (59423, 360280), (63049, 339560), (67912, 315245), (72056, 297115), (84890, 252196), (90070, 237692), (91420, 234182), (117091, 182840), (118846, 180140), (126098, 169780)]