28012390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 61046784

約数和(自身を除く): 33034394

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 127, 137, 161, 230, 254, 274, 322, 635, 685, 805, 889, 959, 1270, 1370, 1610, 1778, 1918, 2921, 3151, 4445, 4795, 5842, 6302, 8890, 9590, 14605, 15755, 17399, 20447, 22057, 29210, 31510, 34798, 40894, 44114, 86995, 102235, 110285, 121793, 173990, 204470, 220570, 243586, 400177, 608965, 800354, 1217930, 2000885, 2801239, 4001770, 5602478, 14006195, 28012390]

約数ペア:

[(1, 28012390), (2, 14006195), (5, 5602478), (7, 4001770), (10, 2801239), (14, 2000885), (23, 1217930), (35, 800354), (46, 608965), (70, 400177), (115, 243586), (127, 220570), (137, 204470), (161, 173990), (230, 121793), (254, 110285), (274, 102235), (322, 86995), (635, 44114), (685, 40894), (805, 34798), (889, 31510), (959, 29210), (1270, 22057), (1370, 20447), (1610, 17399), (1778, 15755), (1918, 14605), (2921, 9590), (3151, 8890), (4445, 6302), (4795, 5842)]