20121472

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1321}}^1$

素因数の和:1359

約数の個数: 64

約数和(自身を含む): 48543840

約数和(自身を除く): 28422368

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 272, 448, 476, 544, 896, 952, 1088, 1321, 1904, 2176, 2642, 3808, 5284, 7616, 9247, 10568, 15232, 18494, 21136, 22457, 36988, 42272, 44914, 73976, 84544, 89828, 147952, 157199, 169088, 179656, 295904, 314398, 359312, 591808, 628796, 718624, 1183616, 1257592, 1437248, 2515184, 2874496, 5030368, 10060736, 20121472]

約数ペア:

[(1, 20121472), (2, 10060736), (4, 5030368), (7, 2874496), (8, 2515184), (14, 1437248), (16, 1257592), (17, 1183616), (28, 718624), (32, 628796), (34, 591808), (56, 359312), (64, 314398), (68, 295904), (112, 179656), (119, 169088), (128, 157199), (136, 147952), (224, 89828), (238, 84544), (272, 73976), (448, 44914), (476, 42272), (544, 36988), (896, 22457), (952, 21136), (1088, 18494), (1321, 15232), (1904, 10568), (2176, 9247), (2642, 7616), (3808, 5284)]