399360010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{281}}^1$

素因数の和:631

約数の個数: 64

約数和(自身を含む): 838149120

約数和(自身を除く): 438789110

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 158, 257, 281, 395, 514, 553, 562, 790, 1106, 1285, 1405, 1799, 1967, 2570, 2765, 2810, 3598, 3934, 5530, 8995, 9835, 17990, 19670, 20303, 22199, 40606, 44398, 72217, 101515, 110995, 142121, 144434, 155393, 203030, 221990, 284242, 310786, 361085, 505519, 710605, 722170, 776965, 1011038, 1421210, 1553930, 2527595, 5055190, 5705143, 11410286, 28525715, 39936001, 57051430, 79872002, 199680005, 399360010]

約数ペア:

[(1, 399360010), (2, 199680005), (5, 79872002), (7, 57051430), (10, 39936001), (14, 28525715), (35, 11410286), (70, 5705143), (79, 5055190), (158, 2527595), (257, 1553930), (281, 1421210), (395, 1011038), (514, 776965), (553, 722170), (562, 710605), (790, 505519), (1106, 361085), (1285, 310786), (1405, 284242), (1799, 221990), (1967, 203030), (2570, 155393), (2765, 144434), (2810, 142121), (3598, 110995), (3934, 101515), (5530, 72217), (8995, 44398), (9835, 40606), (17990, 22199), (19670, 20303)]