28712200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:479

約数の個数: 96

約数和(自身を含む): 75352320

約数和(自身を除く): 46640120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 31, 40, 44, 50, 55, 62, 88, 100, 110, 124, 155, 200, 220, 248, 275, 310, 341, 421, 440, 550, 620, 682, 775, 842, 1100, 1240, 1364, 1550, 1684, 1705, 2105, 2200, 2728, 3100, 3368, 3410, 4210, 4631, 6200, 6820, 8420, 8525, 9262, 10525, 13051, 13640, 16840, 17050, 18524, 21050, 23155, 26102, 34100, 37048, 42100, 46310, 52204, 65255, 68200, 84200, 92620, 104408, 115775, 130510, 143561, 185240, 231550, 261020, 287122, 326275, 463100, 522040, 574244, 652550, 717805, 926200, 1148488, 1305100, 1435610, 2610200, 2871220, 3589025, 5742440, 7178050, 14356100, 28712200]

約数ペア:

[(1, 28712200), (2, 14356100), (4, 7178050), (5, 5742440), (8, 3589025), (10, 2871220), (11, 2610200), (20, 1435610), (22, 1305100), (25, 1148488), (31, 926200), (40, 717805), (44, 652550), (50, 574244), (55, 522040), (62, 463100), (88, 326275), (100, 287122), (110, 261020), (124, 231550), (155, 185240), (200, 143561), (220, 130510), (248, 115775), (275, 104408), (310, 92620), (341, 84200), (421, 68200), (440, 65255), (550, 52204), (620, 46310), (682, 42100), (775, 37048), (842, 34100), (1100, 26102), (1240, 23155), (1364, 21050), (1550, 18524), (1684, 17050), (1705, 16840), (2105, 13640), (2200, 13051), (2728, 10525), (3100, 9262), (3368, 8525), (3410, 8420), (4210, 6820), (4631, 6200)]