78020397

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:503

約数の個数: 72

約数和(自身を含む): 146065920

約数和(自身を除く): 68045523

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 49, 63, 91, 93, 117, 147, 217, 273, 279, 403, 439, 441, 637, 651, 819, 1209, 1317, 1519, 1911, 1953, 2821, 3073, 3627, 3951, 4557, 5707, 5733, 8463, 9219, 13609, 13671, 17121, 19747, 21511, 25389, 27657, 39949, 40827, 51363, 59241, 64533, 95263, 119847, 122481, 176917, 177723, 193599, 279643, 285789, 359541, 530751, 666841, 838929, 857367, 1238419, 1592253, 2000523, 2516787, 3715257, 6001569, 8668933, 11145771, 26006799, 78020397]

約数ペア:

[(1, 78020397), (3, 26006799), (7, 11145771), (9, 8668933), (13, 6001569), (21, 3715257), (31, 2516787), (39, 2000523), (49, 1592253), (63, 1238419), (91, 857367), (93, 838929), (117, 666841), (147, 530751), (217, 359541), (273, 285789), (279, 279643), (403, 193599), (439, 177723), (441, 176917), (637, 122481), (651, 119847), (819, 95263), (1209, 64533), (1317, 59241), (1519, 51363), (1911, 40827), (1953, 39949), (2821, 27657), (3073, 25389), (3627, 21511), (3951, 19747), (4557, 17121), (5707, 13671), (5733, 13609), (8463, 9219)]