19890394440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{388181}}^1$

素因数の和:388263

約数の個数: 128

約数和(自身を含む): 69313777920

約数和(自身を除く): 49423383480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 610, 732, 840, 854, 915, 1220, 1281, 1464, 1708, 1830, 2135, 2440, 2562, 3416, 3660, 4270, 5124, 6405, 7320, 8540, 10248, 12810, 17080, 25620, 51240, 388181, 776362, 1164543, 1552724, 1940905, 2329086, 2717267, 3105448, 3881810, 4658172, 5434534, 5822715, 7763620, 8151801, 9316344, 10869068, 11645430, 13586335, 15527240, 16303602, 21738136, 23290860, 23679041, 27172670, 32607204, 40759005, 46581720, 47358082, 54345340, 65214408, 71037123, 81518010, 94716164, 108690680, 118395205, 142074246, 163036020, 165753287, 189432328, 236790410, 284148492, 326072040, 331506574, 355185615, 473580820, 497259861, 568296984, 663013148, 710371230, 828766435, 947161640, 994519722, 1326026296, 1420742460, 1657532870, 1989039444, 2486299305, 2841484920, 3315065740, 3978078888, 4972598610, 6630131480, 9945197220, 19890394440]

約数ペア:

[(1, 19890394440), (2, 9945197220), (3, 6630131480), (4, 4972598610), (5, 3978078888), (6, 3315065740), (7, 2841484920), (8, 2486299305), (10, 1989039444), (12, 1657532870), (14, 1420742460), (15, 1326026296), (20, 994519722), (21, 947161640), (24, 828766435), (28, 710371230), (30, 663013148), (35, 568296984), (40, 497259861), (42, 473580820), (56, 355185615), (60, 331506574), (61, 326072040), (70, 284148492), (84, 236790410), (105, 189432328), (120, 165753287), (122, 163036020), (140, 142074246), (168, 118395205), (183, 108690680), (210, 94716164), (244, 81518010), (280, 71037123), (305, 65214408), (366, 54345340), (420, 47358082), (427, 46581720), (488, 40759005), (610, 32607204), (732, 27172670), (840, 23679041), (854, 23290860), (915, 21738136), (1220, 16303602), (1281, 15527240), (1464, 13586335), (1708, 11645430), (1830, 10869068), (2135, 9316344), (2440, 8151801), (2562, 7763620), (3416, 5822715), (3660, 5434534), (4270, 4658172), (5124, 3881810), (6405, 3105448), (7320, 2717267), (8540, 2329086), (10248, 1940905), (12810, 1552724), (17080, 1164543), (25620, 776362), (51240, 388181)]