25910680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{331}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 62150400

約数和(自身を除く): 36239720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 206, 331, 380, 412, 515, 662, 760, 824, 1030, 1324, 1655, 1957, 2060, 2648, 3310, 3914, 4120, 6289, 6620, 7828, 9785, 12578, 13240, 15656, 19570, 25156, 31445, 34093, 39140, 50312, 62890, 68186, 78280, 125780, 136372, 170465, 251560, 272744, 340930, 647767, 681860, 1295534, 1363720, 2591068, 3238835, 5182136, 6477670, 12955340, 25910680]

約数ペア:

[(1, 25910680), (2, 12955340), (4, 6477670), (5, 5182136), (8, 3238835), (10, 2591068), (19, 1363720), (20, 1295534), (38, 681860), (40, 647767), (76, 340930), (95, 272744), (103, 251560), (152, 170465), (190, 136372), (206, 125780), (331, 78280), (380, 68186), (412, 62890), (515, 50312), (662, 39140), (760, 34093), (824, 31445), (1030, 25156), (1324, 19570), (1655, 15656), (1957, 13240), (2060, 12578), (2648, 9785), (3310, 7828), (3914, 6620), (4120, 6289)]