123578520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2141}}^1$

素因数の和:2205

約数の個数: 128

約数和(自身を含む): 410235840

約数和(自身を除く): 286657320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 37, 39, 40, 52, 60, 65, 74, 78, 104, 111, 120, 130, 148, 156, 185, 195, 222, 260, 296, 312, 370, 390, 444, 481, 520, 555, 740, 780, 888, 962, 1110, 1443, 1480, 1560, 1924, 2141, 2220, 2405, 2886, 3848, 4282, 4440, 4810, 5772, 6423, 7215, 8564, 9620, 10705, 11544, 12846, 14430, 17128, 19240, 21410, 25692, 27833, 28860, 32115, 42820, 51384, 55666, 57720, 64230, 79217, 83499, 85640, 111332, 128460, 139165, 158434, 166998, 222664, 237651, 256920, 278330, 316868, 333996, 396085, 417495, 475302, 556660, 633736, 667992, 792170, 834990, 950604, 1029821, 1113320, 1188255, 1584340, 1669980, 1901208, 2059642, 2376510, 3089463, 3168680, 3339960, 4119284, 4753020, 5149105, 6178926, 8238568, 9506040, 10298210, 12357852, 15447315, 20596420, 24715704, 30894630, 41192840, 61789260, 123578520]

約数ペア:

[(1, 123578520), (2, 61789260), (3, 41192840), (4, 30894630), (5, 24715704), (6, 20596420), (8, 15447315), (10, 12357852), (12, 10298210), (13, 9506040), (15, 8238568), (20, 6178926), (24, 5149105), (26, 4753020), (30, 4119284), (37, 3339960), (39, 3168680), (40, 3089463), (52, 2376510), (60, 2059642), (65, 1901208), (74, 1669980), (78, 1584340), (104, 1188255), (111, 1113320), (120, 1029821), (130, 950604), (148, 834990), (156, 792170), (185, 667992), (195, 633736), (222, 556660), (260, 475302), (296, 417495), (312, 396085), (370, 333996), (390, 316868), (444, 278330), (481, 256920), (520, 237651), (555, 222664), (740, 166998), (780, 158434), (888, 139165), (962, 128460), (1110, 111332), (1443, 85640), (1480, 83499), (1560, 79217), (1924, 64230), (2141, 57720), (2220, 55666), (2405, 51384), (2886, 42820), (3848, 32115), (4282, 28860), (4440, 27833), (4810, 25692), (5772, 21410), (6423, 19240), (7215, 17128), (8564, 14430), (9620, 12846), (10705, 11544)]