18655780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{593}}^1$

素因数の和:637

約数の個数: 72

約数和(自身を含む): 46453176

約数和(自身を除く): 27797396

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 484, 572, 593, 605, 715, 1186, 1210, 1430, 1573, 2372, 2420, 2860, 2965, 3146, 5930, 6292, 6523, 7709, 7865, 11860, 13046, 15418, 15730, 26092, 30836, 31460, 32615, 38545, 65230, 71753, 77090, 84799, 130460, 143506, 154180, 169598, 287012, 339196, 358765, 423995, 717530, 847990, 932789, 1435060, 1695980, 1865578, 3731156, 4663945, 9327890, 18655780]

約数ペア:

[(1, 18655780), (2, 9327890), (4, 4663945), (5, 3731156), (10, 1865578), (11, 1695980), (13, 1435060), (20, 932789), (22, 847990), (26, 717530), (44, 423995), (52, 358765), (55, 339196), (65, 287012), (110, 169598), (121, 154180), (130, 143506), (143, 130460), (220, 84799), (242, 77090), (260, 71753), (286, 65230), (484, 38545), (572, 32615), (593, 31460), (605, 30836), (715, 26092), (1186, 15730), (1210, 15418), (1430, 13046), (1573, 11860), (2372, 7865), (2420, 7709), (2860, 6523), (2965, 6292), (3146, 5930)]