20390412

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 58544640

約数和(自身を除く): 38154228

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 109, 119, 131, 204, 218, 238, 262, 327, 357, 393, 436, 476, 524, 654, 714, 763, 786, 917, 1308, 1428, 1526, 1572, 1834, 1853, 2227, 2289, 2751, 3052, 3668, 3706, 4454, 4578, 5502, 5559, 6681, 7412, 8908, 9156, 11004, 11118, 12971, 13362, 14279, 15589, 22236, 25942, 26724, 28558, 31178, 38913, 42837, 46767, 51884, 57116, 62356, 77826, 85674, 93534, 99953, 155652, 171348, 187068, 199906, 242743, 299859, 399812, 485486, 599718, 728229, 970972, 1199436, 1456458, 1699201, 2912916, 3398402, 5097603, 6796804, 10195206, 20390412]

約数ペア:

[(1, 20390412), (2, 10195206), (3, 6796804), (4, 5097603), (6, 3398402), (7, 2912916), (12, 1699201), (14, 1456458), (17, 1199436), (21, 970972), (28, 728229), (34, 599718), (42, 485486), (51, 399812), (68, 299859), (84, 242743), (102, 199906), (109, 187068), (119, 171348), (131, 155652), (204, 99953), (218, 93534), (238, 85674), (262, 77826), (327, 62356), (357, 57116), (393, 51884), (436, 46767), (476, 42837), (524, 38913), (654, 31178), (714, 28558), (763, 26724), (786, 25942), (917, 22236), (1308, 15589), (1428, 14279), (1526, 13362), (1572, 12971), (1834, 11118), (1853, 11004), (2227, 9156), (2289, 8908), (2751, 7412), (3052, 6681), (3668, 5559), (3706, 5502), (4454, 4578)]