306280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:74

約数の個数: 64

約数和(自身を含む): 806400

約数和(自身を除く): 500120

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 95, 104, 124, 130, 152, 155, 190, 247, 248, 260, 310, 380, 403, 494, 520, 589, 620, 760, 806, 988, 1178, 1235, 1240, 1612, 1976, 2015, 2356, 2470, 2945, 3224, 4030, 4712, 4940, 5890, 7657, 8060, 9880, 11780, 15314, 16120, 23560, 30628, 38285, 61256, 76570, 153140, 306280]

約数ペア:

[(1, 306280), (2, 153140), (4, 76570), (5, 61256), (8, 38285), (10, 30628), (13, 23560), (19, 16120), (20, 15314), (26, 11780), (31, 9880), (38, 8060), (40, 7657), (52, 5890), (62, 4940), (65, 4712), (76, 4030), (95, 3224), (104, 2945), (124, 2470), (130, 2356), (152, 2015), (155, 1976), (190, 1612), (247, 1240), (248, 1235), (260, 1178), (310, 988), (380, 806), (403, 760), (494, 620), (520, 589)]