20678268

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 55121472

約数和(自身を除く): 34443204

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 52, 53, 61, 78, 82, 106, 122, 123, 156, 159, 164, 183, 212, 244, 246, 318, 366, 492, 533, 636, 689, 732, 793, 1066, 1378, 1586, 1599, 2067, 2132, 2173, 2379, 2501, 2756, 3172, 3198, 3233, 4134, 4346, 4758, 5002, 6396, 6466, 6519, 7503, 8268, 8692, 9516, 9699, 10004, 12932, 13038, 15006, 19398, 26076, 28249, 30012, 32513, 38796, 42029, 56498, 65026, 84058, 84747, 97539, 112996, 126087, 130052, 132553, 168116, 169494, 195078, 252174, 265106, 338988, 390156, 397659, 504348, 530212, 795318, 1590636, 1723189, 3446378, 5169567, 6892756, 10339134, 20678268]

約数ペア:

[(1, 20678268), (2, 10339134), (3, 6892756), (4, 5169567), (6, 3446378), (12, 1723189), (13, 1590636), (26, 795318), (39, 530212), (41, 504348), (52, 397659), (53, 390156), (61, 338988), (78, 265106), (82, 252174), (106, 195078), (122, 169494), (123, 168116), (156, 132553), (159, 130052), (164, 126087), (183, 112996), (212, 97539), (244, 84747), (246, 84058), (318, 65026), (366, 56498), (492, 42029), (533, 38796), (636, 32513), (689, 30012), (732, 28249), (793, 26076), (1066, 19398), (1378, 15006), (1586, 13038), (1599, 12932), (2067, 10004), (2132, 9699), (2173, 9516), (2379, 8692), (2501, 8268), (2756, 7503), (3172, 6519), (3198, 6466), (3233, 6396), (4134, 5002), (4346, 4758)]