20503548

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{227}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 56351568

約数和(自身を除く): 35848020

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 193, 227, 234, 386, 454, 468, 579, 681, 772, 908, 1158, 1362, 1737, 2043, 2316, 2509, 2724, 2951, 3474, 4086, 5018, 5902, 6948, 7527, 8172, 8853, 10036, 11804, 15054, 17706, 22581, 26559, 30108, 35412, 43811, 45162, 53118, 87622, 90324, 106236, 131433, 175244, 262866, 394299, 525732, 569543, 788598, 1139086, 1577196, 1708629, 2278172, 3417258, 5125887, 6834516, 10251774, 20503548]

約数ペア:

[(1, 20503548), (2, 10251774), (3, 6834516), (4, 5125887), (6, 3417258), (9, 2278172), (12, 1708629), (13, 1577196), (18, 1139086), (26, 788598), (36, 569543), (39, 525732), (52, 394299), (78, 262866), (117, 175244), (156, 131433), (193, 106236), (227, 90324), (234, 87622), (386, 53118), (454, 45162), (468, 43811), (579, 35412), (681, 30108), (772, 26559), (908, 22581), (1158, 17706), (1362, 15054), (1737, 11804), (2043, 10036), (2316, 8853), (2509, 8172), (2724, 7527), (2951, 6948), (3474, 5902), (4086, 5018)]