28741570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 61689600

約数和(自身を除く): 32948030

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 101, 110, 130, 143, 199, 202, 286, 398, 505, 715, 995, 1010, 1111, 1313, 1430, 1990, 2189, 2222, 2587, 2626, 4378, 5174, 5555, 6565, 10945, 11110, 12935, 13130, 14443, 20099, 21890, 25870, 28457, 28886, 40198, 56914, 72215, 100495, 142285, 144430, 200990, 221089, 261287, 284570, 442178, 522574, 1105445, 1306435, 2210890, 2612870, 2874157, 5748314, 14370785, 28741570]

約数ペア:

[(1, 28741570), (2, 14370785), (5, 5748314), (10, 2874157), (11, 2612870), (13, 2210890), (22, 1306435), (26, 1105445), (55, 522574), (65, 442178), (101, 284570), (110, 261287), (130, 221089), (143, 200990), (199, 144430), (202, 142285), (286, 100495), (398, 72215), (505, 56914), (715, 40198), (995, 28886), (1010, 28457), (1111, 25870), (1313, 21890), (1430, 20099), (1990, 14443), (2189, 13130), (2222, 12935), (2587, 11110), (2626, 10945), (4378, 6565), (5174, 5555)]