851820100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{373}}^1\times {\mathrm{557}}^1$

素因数の和:985

約数の個数: 72

約数和(自身を含む): 1902018888

約数和(自身を除く): 1050198788

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 373, 410, 557, 746, 820, 1025, 1114, 1492, 1865, 2050, 2228, 2785, 3730, 4100, 5570, 7460, 9325, 11140, 13925, 15293, 18650, 22837, 27850, 30586, 37300, 45674, 55700, 61172, 76465, 91348, 114185, 152930, 207761, 228370, 305860, 382325, 415522, 456740, 570925, 764650, 831044, 1038805, 1141850, 1529300, 2077610, 2283700, 4155220, 5194025, 8518201, 10388050, 17036402, 20776100, 34072804, 42591005, 85182010, 170364020, 212955025, 425910050, 851820100]

約数ペア:

[(1, 851820100), (2, 425910050), (4, 212955025), (5, 170364020), (10, 85182010), (20, 42591005), (25, 34072804), (41, 20776100), (50, 17036402), (82, 10388050), (100, 8518201), (164, 5194025), (205, 4155220), (373, 2283700), (410, 2077610), (557, 1529300), (746, 1141850), (820, 1038805), (1025, 831044), (1114, 764650), (1492, 570925), (1865, 456740), (2050, 415522), (2228, 382325), (2785, 305860), (3730, 228370), (4100, 207761), (5570, 152930), (7460, 114185), (9325, 91348), (11140, 76465), (13925, 61172), (15293, 55700), (18650, 45674), (22837, 37300), (27850, 30586)]