20154750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1$

素因数の和:387

約数の個数: 128

約数和(自身を含む): 62899200

約数和(自身を除く): 42744450

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 25, 30, 33, 35, 42, 50, 55, 66, 70, 75, 77, 105, 110, 125, 150, 154, 165, 175, 210, 231, 250, 275, 330, 349, 350, 375, 385, 462, 525, 550, 698, 750, 770, 825, 875, 1047, 1050, 1155, 1375, 1650, 1745, 1750, 1925, 2094, 2310, 2443, 2625, 2750, 3490, 3839, 3850, 4125, 4886, 5235, 5250, 5775, 7329, 7678, 8250, 8725, 9625, 10470, 11517, 11550, 12215, 14658, 17450, 19195, 19250, 23034, 24430, 26175, 26873, 28875, 36645, 38390, 43625, 52350, 53746, 57585, 57750, 61075, 73290, 80619, 87250, 95975, 115170, 122150, 130875, 134365, 161238, 183225, 191950, 261750, 268730, 287925, 305375, 366450, 403095, 479875, 575850, 610750, 671825, 806190, 916125, 959750, 1343650, 1439625, 1832250, 2015475, 2879250, 3359125, 4030950, 6718250, 10077375, 20154750]

約数ペア:

[(1, 20154750), (2, 10077375), (3, 6718250), (5, 4030950), (6, 3359125), (7, 2879250), (10, 2015475), (11, 1832250), (14, 1439625), (15, 1343650), (21, 959750), (22, 916125), (25, 806190), (30, 671825), (33, 610750), (35, 575850), (42, 479875), (50, 403095), (55, 366450), (66, 305375), (70, 287925), (75, 268730), (77, 261750), (105, 191950), (110, 183225), (125, 161238), (150, 134365), (154, 130875), (165, 122150), (175, 115170), (210, 95975), (231, 87250), (250, 80619), (275, 73290), (330, 61075), (349, 57750), (350, 57585), (375, 53746), (385, 52350), (462, 43625), (525, 38390), (550, 36645), (698, 28875), (750, 26873), (770, 26175), (825, 24430), (875, 23034), (1047, 19250), (1050, 19195), (1155, 17450), (1375, 14658), (1650, 12215), (1745, 11550), (1750, 11517), (1925, 10470), (2094, 9625), (2310, 8725), (2443, 8250), (2625, 7678), (2750, 7329), (3490, 5775), (3839, 5250), (3850, 5235), (4125, 4886)]