71307860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{73}}^1$

素因数の和:142

約数の個数: 108

約数和(自身を含む): 174610548

約数和(自身を除く): 103302688

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 73, 85, 130, 146, 169, 170, 221, 260, 289, 292, 338, 340, 365, 442, 578, 676, 730, 845, 884, 949, 1105, 1156, 1241, 1445, 1460, 1690, 1898, 2210, 2482, 2873, 2890, 3380, 3757, 3796, 4420, 4745, 4964, 5746, 5780, 6205, 7514, 9490, 11492, 12337, 12410, 14365, 15028, 16133, 18785, 18980, 21097, 24674, 24820, 28730, 32266, 37570, 42194, 48841, 49348, 57460, 61685, 64532, 75140, 80665, 84388, 97682, 105485, 123370, 161330, 195364, 209729, 210970, 244205, 246740, 274261, 322660, 419458, 421940, 488410, 548522, 838916, 976820, 1048645, 1097044, 1371305, 2097290, 2742610, 3565393, 4194580, 5485220, 7130786, 14261572, 17826965, 35653930, 71307860]

約数ペア:

[(1, 71307860), (2, 35653930), (4, 17826965), (5, 14261572), (10, 7130786), (13, 5485220), (17, 4194580), (20, 3565393), (26, 2742610), (34, 2097290), (52, 1371305), (65, 1097044), (68, 1048645), (73, 976820), (85, 838916), (130, 548522), (146, 488410), (169, 421940), (170, 419458), (221, 322660), (260, 274261), (289, 246740), (292, 244205), (338, 210970), (340, 209729), (365, 195364), (442, 161330), (578, 123370), (676, 105485), (730, 97682), (845, 84388), (884, 80665), (949, 75140), (1105, 64532), (1156, 61685), (1241, 57460), (1445, 49348), (1460, 48841), (1690, 42194), (1898, 37570), (2210, 32266), (2482, 28730), (2873, 24820), (2890, 24674), (3380, 21097), (3757, 18980), (3796, 18785), (4420, 16133), (4745, 15028), (4964, 14365), (5746, 12410), (5780, 12337), (6205, 11492), (7514, 9490)]