19189940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{733}}^1$

素因数の和:777

約数の個数: 96

約数和(自身を含む): 53270784

約数和(自身を除く): 34080844

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 55, 68, 70, 77, 85, 110, 119, 140, 154, 170, 187, 220, 238, 308, 340, 374, 385, 476, 595, 733, 748, 770, 935, 1190, 1309, 1466, 1540, 1870, 2380, 2618, 2932, 3665, 3740, 5131, 5236, 6545, 7330, 8063, 10262, 12461, 13090, 14660, 16126, 20524, 24922, 25655, 26180, 32252, 40315, 49844, 51310, 56441, 62305, 80630, 87227, 102620, 112882, 124610, 137071, 161260, 174454, 225764, 249220, 274142, 282205, 348908, 436135, 548284, 564410, 685355, 872270, 959497, 1128820, 1370710, 1744540, 1918994, 2741420, 3837988, 4797485, 9594970, 19189940]

約数ペア:

[(1, 19189940), (2, 9594970), (4, 4797485), (5, 3837988), (7, 2741420), (10, 1918994), (11, 1744540), (14, 1370710), (17, 1128820), (20, 959497), (22, 872270), (28, 685355), (34, 564410), (35, 548284), (44, 436135), (55, 348908), (68, 282205), (70, 274142), (77, 249220), (85, 225764), (110, 174454), (119, 161260), (140, 137071), (154, 124610), (170, 112882), (187, 102620), (220, 87227), (238, 80630), (308, 62305), (340, 56441), (374, 51310), (385, 49844), (476, 40315), (595, 32252), (733, 26180), (748, 25655), (770, 24922), (935, 20524), (1190, 16126), (1309, 14660), (1466, 13090), (1540, 12461), (1870, 10262), (2380, 8063), (2618, 7330), (2932, 6545), (3665, 5236), (3740, 5131)]