311998140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{24413}}^1$

素因数の和:24499

約数の個数: 72

約数和(自身を含む): 959763168

約数和(自身を除く): 647765028

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, 24413, 48826, 73239, 97652, 122065, 146478, 219717, 244130, 292956, 366195, 439434, 488260, 732390, 878868, 1098585, 1464780, 1733323, 2197170, 3466646, 4394340, 5199969, 6933292, 8666615, 10399938, 15599907, 17333230, 20799876, 25999845, 31199814, 34666460, 51999690, 62399628, 77999535, 103999380, 155999070, 311998140]

約数ペア:

[(1, 311998140), (2, 155999070), (3, 103999380), (4, 77999535), (5, 62399628), (6, 51999690), (9, 34666460), (10, 31199814), (12, 25999845), (15, 20799876), (18, 17333230), (20, 15599907), (30, 10399938), (36, 8666615), (45, 6933292), (60, 5199969), (71, 4394340), (90, 3466646), (142, 2197170), (180, 1733323), (213, 1464780), (284, 1098585), (355, 878868), (426, 732390), (639, 488260), (710, 439434), (852, 366195), (1065, 292956), (1278, 244130), (1420, 219717), (2130, 146478), (2556, 122065), (3195, 97652), (4260, 73239), (6390, 48826), (12780, 24413)]