31418210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 64385280

約数和(自身を除く): 32967070

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 71, 85, 95, 137, 142, 170, 190, 274, 323, 355, 646, 685, 710, 1207, 1349, 1370, 1615, 2329, 2414, 2603, 2698, 3230, 4658, 5206, 6035, 6745, 9727, 11645, 12070, 13015, 13490, 19454, 22933, 23290, 26030, 44251, 45866, 48635, 88502, 97270, 114665, 165359, 184813, 221255, 229330, 330718, 369626, 442510, 826795, 924065, 1653590, 1848130, 3141821, 6283642, 15709105, 31418210]

約数ペア:

[(1, 31418210), (2, 15709105), (5, 6283642), (10, 3141821), (17, 1848130), (19, 1653590), (34, 924065), (38, 826795), (71, 442510), (85, 369626), (95, 330718), (137, 229330), (142, 221255), (170, 184813), (190, 165359), (274, 114665), (323, 97270), (355, 88502), (646, 48635), (685, 45866), (710, 44251), (1207, 26030), (1349, 23290), (1370, 22933), (1615, 19454), (2329, 13490), (2414, 13015), (2603, 12070), (2698, 11645), (3230, 9727), (4658, 6745), (5206, 6035)]