1581268520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{709}}^1\times {\mathrm{4289}}^1$

素因数の和:5022

約数の個数: 64

約数和(自身を含む): 3837834000

約数和(自身を除く): 2256565480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 709, 1418, 2836, 3545, 4289, 5672, 7090, 8578, 9217, 14180, 17156, 18434, 21445, 28360, 34312, 36868, 42890, 46085, 55757, 73736, 85780, 92170, 111514, 171560, 184340, 223028, 278785, 368680, 446056, 557570, 1115140, 2230280, 3040901, 6081802, 12163604, 15204505, 24327208, 30409010, 39531713, 60818020, 79063426, 121636040, 158126852, 197658565, 316253704, 395317130, 790634260, 1581268520]

約数ペア:

[(1, 1581268520), (2, 790634260), (4, 395317130), (5, 316253704), (8, 197658565), (10, 158126852), (13, 121636040), (20, 79063426), (26, 60818020), (40, 39531713), (52, 30409010), (65, 24327208), (104, 15204505), (130, 12163604), (260, 6081802), (520, 3040901), (709, 2230280), (1418, 1115140), (2836, 557570), (3545, 446056), (4289, 368680), (5672, 278785), (7090, 223028), (8578, 184340), (9217, 171560), (14180, 111514), (17156, 92170), (18434, 85780), (21445, 73736), (28360, 55757), (34312, 46085), (36868, 42890)]