18891210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{821}}^1$

素因数の和:903

約数の個数: 64

約数和(自身を含む): 49714560

約数和(自身を除く): 30823350

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 59, 65, 78, 118, 130, 177, 195, 295, 354, 390, 590, 767, 821, 885, 1534, 1642, 1770, 2301, 2463, 3835, 4105, 4602, 4926, 7670, 8210, 10673, 11505, 12315, 21346, 23010, 24630, 32019, 48439, 53365, 64038, 96878, 106730, 145317, 160095, 242195, 290634, 320190, 484390, 629707, 726585, 1259414, 1453170, 1889121, 3148535, 3778242, 6297070, 9445605, 18891210]

約数ペア:

[(1, 18891210), (2, 9445605), (3, 6297070), (5, 3778242), (6, 3148535), (10, 1889121), (13, 1453170), (15, 1259414), (26, 726585), (30, 629707), (39, 484390), (59, 320190), (65, 290634), (78, 242195), (118, 160095), (130, 145317), (177, 106730), (195, 96878), (295, 64038), (354, 53365), (390, 48439), (590, 32019), (767, 24630), (821, 23010), (885, 21346), (1534, 12315), (1642, 11505), (1770, 10673), (2301, 8210), (2463, 7670), (3835, 4926), (4105, 4602)]