20154882620

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1\times {\mathrm{449}}^1$

素因数の和:975

約数の個数: 96

約数和(自身を含む): 43659000000

約数和(自身を除く): 23504117380

約数列:

[1, 2, 4, 5, 10, 20, 59, 109, 118, 218, 236, 295, 349, 436, 449, 545, 590, 698, 898, 1090, 1180, 1396, 1745, 1796, 2180, 2245, 3490, 4490, 6431, 6980, 8980, 12862, 20591, 25724, 26491, 32155, 38041, 41182, 48941, 52982, 64310, 76082, 82364, 97882, 102955, 105964, 128620, 132455, 152164, 156701, 190205, 195764, 205910, 244705, 264910, 313402, 380410, 411820, 489410, 529820, 626804, 760820, 783505, 978820, 1567010, 2244419, 2887519, 3134020, 4488838, 5775038, 8977676, 9245359, 11222095, 11550076, 14437595, 17080409, 18490718, 22444190, 28875190, 34160818, 36981436, 44888380, 46226795, 57750380, 68321636, 85402045, 92453590, 170804090, 184907180, 341608180, 1007744131, 2015488262, 4030976524, 5038720655, 10077441310, 20154882620]

約数ペア:

[(1, 20154882620), (2, 10077441310), (4, 5038720655), (5, 4030976524), (10, 2015488262), (20, 1007744131), (59, 341608180), (109, 184907180), (118, 170804090), (218, 92453590), (236, 85402045), (295, 68321636), (349, 57750380), (436, 46226795), (449, 44888380), (545, 36981436), (590, 34160818), (698, 28875190), (898, 22444190), (1090, 18490718), (1180, 17080409), (1396, 14437595), (1745, 11550076), (1796, 11222095), (2180, 9245359), (2245, 8977676), (3490, 5775038), (4490, 4488838), (6431, 3134020), (6980, 2887519), (8980, 2244419), (12862, 1567010), (20591, 978820), (25724, 783505), (26491, 760820), (32155, 626804), (38041, 529820), (41182, 489410), (48941, 411820), (52982, 380410), (64310, 313402), (76082, 264910), (82364, 244705), (97882, 205910), (102955, 195764), (105964, 190205), (128620, 156701), (132455, 152164)]