4638920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{811}}^1$

素因数の和:846

約数の個数: 64

約数和(自身を含む): 12277440

約数和(自身を除く): 7638520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 811, 1144, 1430, 1622, 2860, 3244, 4055, 5720, 6488, 8110, 8921, 10543, 16220, 17842, 21086, 32440, 35684, 42172, 44605, 52715, 71368, 84344, 89210, 105430, 115973, 178420, 210860, 231946, 356840, 421720, 463892, 579865, 927784, 1159730, 2319460, 4638920]

約数ペア:

[(1, 4638920), (2, 2319460), (4, 1159730), (5, 927784), (8, 579865), (10, 463892), (11, 421720), (13, 356840), (20, 231946), (22, 210860), (26, 178420), (40, 115973), (44, 105430), (52, 89210), (55, 84344), (65, 71368), (88, 52715), (104, 44605), (110, 42172), (130, 35684), (143, 32440), (220, 21086), (260, 17842), (286, 16220), (440, 10543), (520, 8921), (572, 8110), (715, 6488), (811, 5720), (1144, 4055), (1430, 3244), (1622, 2860)]