31645640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3203}}^1$

素因数の和:3246

約数の個数: 64

約数和(自身を含む): 80740800

約数和(自身を除く): 49095160

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 3203, 4940, 6406, 9880, 12812, 16015, 25624, 32030, 41639, 60857, 64060, 83278, 121714, 128120, 166556, 208195, 243428, 304285, 333112, 416390, 486856, 608570, 791141, 832780, 1217140, 1582282, 1665560, 2434280, 3164564, 3955705, 6329128, 7911410, 15822820, 31645640]

約数ペア:

[(1, 31645640), (2, 15822820), (4, 7911410), (5, 6329128), (8, 3955705), (10, 3164564), (13, 2434280), (19, 1665560), (20, 1582282), (26, 1217140), (38, 832780), (40, 791141), (52, 608570), (65, 486856), (76, 416390), (95, 333112), (104, 304285), (130, 243428), (152, 208195), (190, 166556), (247, 128120), (260, 121714), (380, 83278), (494, 64060), (520, 60857), (760, 41639), (988, 32030), (1235, 25624), (1976, 16015), (2470, 12812), (3203, 9880), (4940, 6406)]