78478452

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2749}}^1$

素因数の和:2833

約数の個数: 72

約数和(自身を含む): 217217000

約数和(自身を除く): 138738548

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 61, 78, 117, 122, 156, 183, 234, 244, 366, 468, 549, 732, 793, 1098, 1586, 2196, 2379, 2749, 3172, 4758, 5498, 7137, 8247, 9516, 10996, 14274, 16494, 24741, 28548, 32988, 35737, 49482, 71474, 98964, 107211, 142948, 167689, 214422, 321633, 335378, 428844, 503067, 643266, 670756, 1006134, 1286532, 1509201, 2012268, 2179957, 3018402, 4359914, 6036804, 6539871, 8719828, 13079742, 19619613, 26159484, 39239226, 78478452]

約数ペア:

[(1, 78478452), (2, 39239226), (3, 26159484), (4, 19619613), (6, 13079742), (9, 8719828), (12, 6539871), (13, 6036804), (18, 4359914), (26, 3018402), (36, 2179957), (39, 2012268), (52, 1509201), (61, 1286532), (78, 1006134), (117, 670756), (122, 643266), (156, 503067), (183, 428844), (234, 335378), (244, 321633), (366, 214422), (468, 167689), (549, 142948), (732, 107211), (793, 98964), (1098, 71474), (1586, 49482), (2196, 35737), (2379, 32988), (2749, 28548), (3172, 24741), (4758, 16494), (5498, 14274), (7137, 10996), (8247, 9516)]