648830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:81

約数の個数: 64

約数和(自身を含む): 1548288

約数和(自身を除く): 899458

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 31, 35, 46, 62, 65, 70, 91, 115, 130, 155, 161, 182, 217, 230, 299, 310, 322, 403, 434, 455, 598, 713, 805, 806, 910, 1085, 1426, 1495, 1610, 2015, 2093, 2170, 2821, 2990, 3565, 4030, 4186, 4991, 5642, 7130, 9269, 9982, 10465, 14105, 18538, 20930, 24955, 28210, 46345, 49910, 64883, 92690, 129766, 324415, 648830]

約数ペア:

[(1, 648830), (2, 324415), (5, 129766), (7, 92690), (10, 64883), (13, 49910), (14, 46345), (23, 28210), (26, 24955), (31, 20930), (35, 18538), (46, 14105), (62, 10465), (65, 9982), (70, 9269), (91, 7130), (115, 5642), (130, 4991), (155, 4186), (161, 4030), (182, 3565), (217, 2990), (230, 2821), (299, 2170), (310, 2093), (322, 2015), (403, 1610), (434, 1495), (455, 1426), (598, 1085), (713, 910), (805, 806)]