19285880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 45390240

約数和(自身を除く): 26104360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 83, 148, 157, 166, 185, 296, 314, 332, 370, 415, 628, 664, 740, 785, 830, 1256, 1480, 1570, 1660, 3071, 3140, 3320, 5809, 6142, 6280, 11618, 12284, 13031, 15355, 23236, 24568, 26062, 29045, 30710, 46472, 52124, 58090, 61420, 65155, 104248, 116180, 122840, 130310, 232360, 260620, 482147, 521240, 964294, 1928588, 2410735, 3857176, 4821470, 9642940, 19285880]

約数ペア:

[(1, 19285880), (2, 9642940), (4, 4821470), (5, 3857176), (8, 2410735), (10, 1928588), (20, 964294), (37, 521240), (40, 482147), (74, 260620), (83, 232360), (148, 130310), (157, 122840), (166, 116180), (185, 104248), (296, 65155), (314, 61420), (332, 58090), (370, 52124), (415, 46472), (628, 30710), (664, 29045), (740, 26062), (785, 24568), (830, 23236), (1256, 15355), (1480, 13031), (1570, 12284), (1660, 11618), (3071, 6280), (3140, 6142), (3320, 5809)]