86671780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19609}}^1$

素因数の和:19648

約数の個数: 48

約数和(自身を含む): 207552240

約数和(自身を除く): 120880460

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 19609, 39218, 78436, 98045, 196090, 254917, 333353, 392180, 509834, 666706, 1019668, 1274585, 1333412, 1666765, 2549170, 3333530, 4333589, 5098340, 6667060, 8667178, 17334356, 21667945, 43335890, 86671780]

約数ペア:

[(1, 86671780), (2, 43335890), (4, 21667945), (5, 17334356), (10, 8667178), (13, 6667060), (17, 5098340), (20, 4333589), (26, 3333530), (34, 2549170), (52, 1666765), (65, 1333412), (68, 1274585), (85, 1019668), (130, 666706), (170, 509834), (221, 392180), (260, 333353), (340, 254917), (442, 196090), (884, 98045), (1105, 78436), (2210, 39218), (4420, 19609)]