18650280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:295

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 43557720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 71, 88, 110, 120, 132, 142, 165, 199, 213, 220, 264, 284, 330, 355, 398, 426, 440, 568, 597, 660, 710, 781, 796, 852, 995, 1065, 1194, 1320, 1420, 1562, 1592, 1704, 1990, 2130, 2189, 2343, 2388, 2840, 2985, 3124, 3905, 3980, 4260, 4378, 4686, 4776, 5970, 6248, 6567, 7810, 7960, 8520, 8756, 9372, 10945, 11715, 11940, 13134, 14129, 15620, 17512, 18744, 21890, 23430, 23880, 26268, 28258, 31240, 32835, 42387, 43780, 46860, 52536, 56516, 65670, 70645, 84774, 87560, 93720, 113032, 131340, 141290, 155419, 169548, 211935, 262680, 282580, 310838, 339096, 423870, 466257, 565160, 621676, 777095, 847740, 932514, 1243352, 1554190, 1695480, 1865028, 2331285, 3108380, 3730056, 4662570, 6216760, 9325140, 18650280]

約数ペア:

[(1, 18650280), (2, 9325140), (3, 6216760), (4, 4662570), (5, 3730056), (6, 3108380), (8, 2331285), (10, 1865028), (11, 1695480), (12, 1554190), (15, 1243352), (20, 932514), (22, 847740), (24, 777095), (30, 621676), (33, 565160), (40, 466257), (44, 423870), (55, 339096), (60, 310838), (66, 282580), (71, 262680), (88, 211935), (110, 169548), (120, 155419), (132, 141290), (142, 131340), (165, 113032), (199, 93720), (213, 87560), (220, 84774), (264, 70645), (284, 65670), (330, 56516), (355, 52536), (398, 46860), (426, 43780), (440, 42387), (568, 32835), (597, 31240), (660, 28258), (710, 26268), (781, 23880), (796, 23430), (852, 21890), (995, 18744), (1065, 17512), (1194, 15620), (1320, 14129), (1420, 13134), (1562, 11940), (1592, 11715), (1704, 10945), (1990, 9372), (2130, 8756), (2189, 8520), (2343, 7960), (2388, 7810), (2840, 6567), (2985, 6248), (3124, 5970), (3905, 4776), (3980, 4686), (4260, 4378)]