20354724

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 60662784

約数和(自身を除く): 40308060

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 31, 36, 39, 46, 52, 61, 62, 69, 78, 92, 93, 117, 122, 124, 138, 156, 183, 186, 207, 234, 244, 276, 279, 299, 366, 372, 403, 414, 468, 549, 558, 598, 713, 732, 793, 806, 828, 897, 1098, 1116, 1196, 1209, 1403, 1426, 1586, 1612, 1794, 1891, 2139, 2196, 2379, 2418, 2691, 2806, 2852, 3172, 3588, 3627, 3782, 4209, 4278, 4758, 4836, 5382, 5612, 5673, 6417, 7137, 7254, 7564, 8418, 8556, 9269, 9516, 10764, 11346, 12627, 12834, 14274, 14508, 16836, 17019, 18239, 18538, 22692, 24583, 25254, 25668, 27807, 28548, 34038, 36478, 37076, 43493, 49166, 50508, 54717, 55614, 68076, 72956, 73749, 83421, 86986, 98332, 109434, 111228, 130479, 147498, 164151, 166842, 173972, 218868, 221247, 260958, 294996, 328302, 333684, 391437, 442494, 521916, 565409, 656604, 782874, 884988, 1130818, 1565748, 1696227, 2261636, 3392454, 5088681, 6784908, 10177362, 20354724]

約数ペア:

[(1, 20354724), (2, 10177362), (3, 6784908), (4, 5088681), (6, 3392454), (9, 2261636), (12, 1696227), (13, 1565748), (18, 1130818), (23, 884988), (26, 782874), (31, 656604), (36, 565409), (39, 521916), (46, 442494), (52, 391437), (61, 333684), (62, 328302), (69, 294996), (78, 260958), (92, 221247), (93, 218868), (117, 173972), (122, 166842), (124, 164151), (138, 147498), (156, 130479), (183, 111228), (186, 109434), (207, 98332), (234, 86986), (244, 83421), (276, 73749), (279, 72956), (299, 68076), (366, 55614), (372, 54717), (403, 50508), (414, 49166), (468, 43493), (549, 37076), (558, 36478), (598, 34038), (713, 28548), (732, 27807), (793, 25668), (806, 25254), (828, 24583), (897, 22692), (1098, 18538), (1116, 18239), (1196, 17019), (1209, 16836), (1403, 14508), (1426, 14274), (1586, 12834), (1612, 12627), (1794, 11346), (1891, 10764), (2139, 9516), (2196, 9269), (2379, 8556), (2418, 8418), (2691, 7564), (2806, 7254), (2852, 7137), (3172, 6417), (3588, 5673), (3627, 5612), (3782, 5382), (4209, 4836), (4278, 4758)]