21430487600

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2819801}}^1$

素因数の和:2819838

約数の個数: 60

約数和(自身を含む): 54196594440

約数和(自身を除く): 32766106840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 3800, 7600, 2819801, 5639602, 11279204, 14099005, 22558408, 28198010, 45116816, 53576219, 56396020, 70495025, 107152438, 112792040, 140990050, 214304876, 225584080, 267881095, 281980100, 428609752, 535762190, 563960200, 857219504, 1071524380, 1127920400, 1339405475, 2143048760, 2678810950, 4286097520, 5357621900, 10715243800, 21430487600]

約数ペア:

[(1, 21430487600), (2, 10715243800), (4, 5357621900), (5, 4286097520), (8, 2678810950), (10, 2143048760), (16, 1339405475), (19, 1127920400), (20, 1071524380), (25, 857219504), (38, 563960200), (40, 535762190), (50, 428609752), (76, 281980100), (80, 267881095), (95, 225584080), (100, 214304876), (152, 140990050), (190, 112792040), (200, 107152438), (304, 70495025), (380, 56396020), (400, 53576219), (475, 45116816), (760, 28198010), (950, 22558408), (1520, 14099005), (1900, 11279204), (3800, 5639602), (7600, 2819801)]