51787780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:325

約数の個数: 96

約数和(自身を含む): 128241792

約数和(自身を除く): 76454012

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 61, 68, 85, 110, 122, 170, 187, 220, 227, 244, 305, 340, 374, 454, 610, 671, 748, 908, 935, 1037, 1135, 1220, 1342, 1870, 2074, 2270, 2497, 2684, 3355, 3740, 3859, 4148, 4540, 4994, 5185, 6710, 7718, 9988, 10370, 11407, 12485, 13420, 13847, 15436, 19295, 20740, 22814, 24970, 27694, 38590, 42449, 45628, 49940, 55388, 57035, 69235, 77180, 84898, 114070, 138470, 152317, 169796, 212245, 228140, 235399, 276940, 304634, 424490, 470798, 609268, 761585, 848980, 941596, 1176995, 1523170, 2353990, 2589389, 3046340, 4707980, 5178778, 10357556, 12946945, 25893890, 51787780]

約数ペア:

[(1, 51787780), (2, 25893890), (4, 12946945), (5, 10357556), (10, 5178778), (11, 4707980), (17, 3046340), (20, 2589389), (22, 2353990), (34, 1523170), (44, 1176995), (55, 941596), (61, 848980), (68, 761585), (85, 609268), (110, 470798), (122, 424490), (170, 304634), (187, 276940), (220, 235399), (227, 228140), (244, 212245), (305, 169796), (340, 152317), (374, 138470), (454, 114070), (610, 84898), (671, 77180), (748, 69235), (908, 57035), (935, 55388), (1037, 49940), (1135, 45628), (1220, 42449), (1342, 38590), (1870, 27694), (2074, 24970), (2270, 22814), (2497, 20740), (2684, 19295), (3355, 15436), (3740, 13847), (3859, 13420), (4148, 12485), (4540, 11407), (4994, 10370), (5185, 9988), (6710, 7718)]