643665390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{23813}}^1$

素因数の和:23893

約数の個数: 64

約数和(自身を含む): 1666598976

約数和(自身を除く): 1022933586

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 53, 85, 102, 106, 159, 170, 255, 265, 318, 510, 530, 795, 901, 1590, 1802, 2703, 4505, 5406, 9010, 13515, 23813, 27030, 47626, 71439, 119065, 142878, 238130, 357195, 404821, 714390, 809642, 1214463, 1262089, 2024105, 2428926, 2524178, 3786267, 4048210, 6072315, 6310445, 7572534, 12144630, 12620890, 18931335, 21455513, 37862670, 42911026, 64366539, 107277565, 128733078, 214555130, 321832695, 643665390]

約数ペア:

[(1, 643665390), (2, 321832695), (3, 214555130), (5, 128733078), (6, 107277565), (10, 64366539), (15, 42911026), (17, 37862670), (30, 21455513), (34, 18931335), (51, 12620890), (53, 12144630), (85, 7572534), (102, 6310445), (106, 6072315), (159, 4048210), (170, 3786267), (255, 2524178), (265, 2428926), (318, 2024105), (510, 1262089), (530, 1214463), (795, 809642), (901, 714390), (1590, 404821), (1802, 357195), (2703, 238130), (4505, 142878), (5406, 119065), (9010, 71439), (13515, 47626), (23813, 27030)]