81888784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{1613}}^1$

素因数の和:1807

約数の個数: 40

約数和(自身を含む): 168114240

約数和(自身を除く): 86225456

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 167, 304, 334, 668, 1336, 1613, 2672, 3173, 3226, 6346, 6452, 12692, 12904, 25384, 25808, 30647, 50768, 61294, 122588, 245176, 269371, 490352, 538742, 1077484, 2154968, 4309936, 5118049, 10236098, 20472196, 40944392, 81888784]

約数ペア:

[(1, 81888784), (2, 40944392), (4, 20472196), (8, 10236098), (16, 5118049), (19, 4309936), (38, 2154968), (76, 1077484), (152, 538742), (167, 490352), (304, 269371), (334, 245176), (668, 122588), (1336, 61294), (1613, 50768), (2672, 30647), (3173, 25808), (3226, 25384), (6346, 12904), (6452, 12692)]