17978730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 128

約数和(自身を含む): 55351296

約数和(自身を除く): 37372566

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 43, 55, 66, 70, 77, 86, 105, 110, 129, 154, 165, 181, 210, 215, 231, 258, 301, 330, 362, 385, 430, 462, 473, 543, 602, 645, 770, 903, 905, 946, 1086, 1155, 1267, 1290, 1419, 1505, 1806, 1810, 1991, 2310, 2365, 2534, 2715, 2838, 3010, 3311, 3801, 3982, 4515, 4730, 5430, 5973, 6335, 6622, 7095, 7602, 7783, 9030, 9933, 9955, 11946, 12670, 13937, 14190, 15566, 16555, 19005, 19866, 19910, 23349, 27874, 29865, 33110, 38010, 38915, 41811, 46698, 49665, 54481, 59730, 69685, 77830, 83622, 85613, 99330, 108962, 116745, 139370, 163443, 171226, 209055, 233490, 256839, 272405, 326886, 418110, 428065, 513678, 544810, 599291, 817215, 856130, 1198582, 1284195, 1634430, 1797873, 2568390, 2996455, 3595746, 5992910, 8989365, 17978730]

約数ペア:

[(1, 17978730), (2, 8989365), (3, 5992910), (5, 3595746), (6, 2996455), (7, 2568390), (10, 1797873), (11, 1634430), (14, 1284195), (15, 1198582), (21, 856130), (22, 817215), (30, 599291), (33, 544810), (35, 513678), (42, 428065), (43, 418110), (55, 326886), (66, 272405), (70, 256839), (77, 233490), (86, 209055), (105, 171226), (110, 163443), (129, 139370), (154, 116745), (165, 108962), (181, 99330), (210, 85613), (215, 83622), (231, 77830), (258, 69685), (301, 59730), (330, 54481), (362, 49665), (385, 46698), (430, 41811), (462, 38915), (473, 38010), (543, 33110), (602, 29865), (645, 27874), (770, 23349), (903, 19910), (905, 19866), (946, 19005), (1086, 16555), (1155, 15566), (1267, 14190), (1290, 13937), (1419, 12670), (1505, 11946), (1806, 9955), (1810, 9933), (1991, 9030), (2310, 7783), (2365, 7602), (2534, 7095), (2715, 6622), (2838, 6335), (3010, 5973), (3311, 5430), (3801, 4730), (3982, 4515)]