221311260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17317}}^1$

素因数の和:17403

約数の個数: 72

約数和(自身を含む): 680805216

約数和(自身を除く): 459493956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 17317, 34634, 51951, 69268, 86585, 103902, 155853, 173170, 207804, 259755, 311706, 346340, 519510, 623412, 779265, 1039020, 1229507, 1558530, 2459014, 3117060, 3688521, 4918028, 6147535, 7377042, 11065563, 12295070, 14754084, 18442605, 22131126, 24590140, 36885210, 44262252, 55327815, 73770420, 110655630, 221311260]

約数ペア:

[(1, 221311260), (2, 110655630), (3, 73770420), (4, 55327815), (5, 44262252), (6, 36885210), (9, 24590140), (10, 22131126), (12, 18442605), (15, 14754084), (18, 12295070), (20, 11065563), (30, 7377042), (36, 6147535), (45, 4918028), (60, 3688521), (71, 3117060), (90, 2459014), (142, 1558530), (180, 1229507), (213, 1039020), (284, 779265), (355, 623412), (426, 519510), (639, 346340), (710, 311706), (852, 259755), (1065, 207804), (1278, 173170), (1420, 155853), (2130, 103902), (2556, 86585), (3195, 69268), (4260, 51951), (6390, 34634), (12780, 17317)]