99999780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 305329920

約数和(自身を除く): 205330140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 73, 79, 85, 102, 146, 158, 170, 204, 219, 237, 255, 289, 292, 316, 340, 365, 395, 438, 474, 510, 578, 730, 790, 867, 876, 948, 1020, 1095, 1156, 1185, 1241, 1343, 1445, 1460, 1580, 1734, 2190, 2370, 2482, 2686, 2890, 3468, 3723, 4029, 4335, 4380, 4740, 4964, 5372, 5767, 5780, 6205, 6715, 7446, 8058, 8670, 11534, 12410, 13430, 14892, 16116, 17301, 17340, 18615, 20145, 21097, 22831, 23068, 24820, 26860, 28835, 34602, 37230, 40290, 42194, 45662, 57670, 63291, 68493, 69204, 74460, 80580, 84388, 86505, 91324, 98039, 105485, 114155, 115340, 126582, 136986, 173010, 196078, 210970, 228310, 253164, 273972, 294117, 316455, 342465, 346020, 392156, 421940, 456620, 490195, 588234, 632910, 684930, 980390, 1176468, 1265820, 1369860, 1470585, 1666663, 1960780, 2941170, 3333326, 4999989, 5882340, 6666652, 8333315, 9999978, 16666630, 19999956, 24999945, 33333260, 49999890, 99999780]

約数ペア:

[(1, 99999780), (2, 49999890), (3, 33333260), (4, 24999945), (5, 19999956), (6, 16666630), (10, 9999978), (12, 8333315), (15, 6666652), (17, 5882340), (20, 4999989), (30, 3333326), (34, 2941170), (51, 1960780), (60, 1666663), (68, 1470585), (73, 1369860), (79, 1265820), (85, 1176468), (102, 980390), (146, 684930), (158, 632910), (170, 588234), (204, 490195), (219, 456620), (237, 421940), (255, 392156), (289, 346020), (292, 342465), (316, 316455), (340, 294117), (365, 273972), (395, 253164), (438, 228310), (474, 210970), (510, 196078), (578, 173010), (730, 136986), (790, 126582), (867, 115340), (876, 114155), (948, 105485), (1020, 98039), (1095, 91324), (1156, 86505), (1185, 84388), (1241, 80580), (1343, 74460), (1445, 69204), (1460, 68493), (1580, 63291), (1734, 57670), (2190, 45662), (2370, 42194), (2482, 40290), (2686, 37230), (2890, 34602), (3468, 28835), (3723, 26860), (4029, 24820), (4335, 23068), (4380, 22831), (4740, 21097), (4964, 20145), (5372, 18615), (5767, 17340), (5780, 17301), (6205, 16116), (6715, 14892), (7446, 13430), (8058, 12410), (8670, 11534)]