28806700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{22159}}^1$

素因数の和:22186

約数の個数: 36

約数和(自身を含む): 67322080

約数和(自身を除く): 38515380

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 22159, 44318, 88636, 110795, 221590, 288067, 443180, 553975, 576134, 1107950, 1152268, 1440335, 2215900, 2880670, 5761340, 7201675, 14403350, 28806700]

約数ペア:

[(1, 28806700), (2, 14403350), (4, 7201675), (5, 5761340), (10, 2880670), (13, 2215900), (20, 1440335), (25, 1152268), (26, 1107950), (50, 576134), (52, 553975), (65, 443180), (100, 288067), (130, 221590), (260, 110795), (325, 88636), (650, 44318), (1300, 22159)]