21205200

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:493

約数の個数: 120

約数和(自身を含む): 69745536

約数和(自身を除く): 48540336

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 41, 48, 50, 60, 75, 80, 82, 100, 120, 123, 150, 164, 200, 205, 240, 246, 300, 328, 400, 410, 431, 492, 600, 615, 656, 820, 862, 984, 1025, 1200, 1230, 1293, 1640, 1724, 1968, 2050, 2155, 2460, 2586, 3075, 3280, 3448, 4100, 4310, 4920, 5172, 6150, 6465, 6896, 8200, 8620, 9840, 10344, 10775, 12300, 12930, 16400, 17240, 17671, 20688, 21550, 24600, 25860, 32325, 34480, 35342, 43100, 49200, 51720, 53013, 64650, 70684, 86200, 88355, 103440, 106026, 129300, 141368, 172400, 176710, 212052, 258600, 265065, 282736, 353420, 424104, 441775, 517200, 530130, 706840, 848208, 883550, 1060260, 1325325, 1413680, 1767100, 2120520, 2650650, 3534200, 4241040, 5301300, 7068400, 10602600, 21205200]

約数ペア:

[(1, 21205200), (2, 10602600), (3, 7068400), (4, 5301300), (5, 4241040), (6, 3534200), (8, 2650650), (10, 2120520), (12, 1767100), (15, 1413680), (16, 1325325), (20, 1060260), (24, 883550), (25, 848208), (30, 706840), (40, 530130), (41, 517200), (48, 441775), (50, 424104), (60, 353420), (75, 282736), (80, 265065), (82, 258600), (100, 212052), (120, 176710), (123, 172400), (150, 141368), (164, 129300), (200, 106026), (205, 103440), (240, 88355), (246, 86200), (300, 70684), (328, 64650), (400, 53013), (410, 51720), (431, 49200), (492, 43100), (600, 35342), (615, 34480), (656, 32325), (820, 25860), (862, 24600), (984, 21550), (1025, 20688), (1200, 17671), (1230, 17240), (1293, 16400), (1640, 12930), (1724, 12300), (1968, 10775), (2050, 10344), (2155, 9840), (2460, 8620), (2586, 8200), (3075, 6896), (3280, 6465), (3448, 6150), (4100, 5172), (4310, 4920)]