1998030720

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{148663}}^1$

素因数の和:148692

約数の個数: 128

約数和(自身を含む): 7278589440

約数和(自身を除く): 5280558720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 148663, 297326, 445989, 594652, 743315, 891978, 1040641, 1189304, 1486630, 1783956, 2081282, 2229945, 2378608, 2973260, 3121923, 3567912, 4162564, 4459890, 4757216, 5203205, 5946520, 6243846, 7135824, 8325128, 8919780, 9514432, 10406410, 11893040, 12487692, 14271648, 15609615, 16650256, 17839560, 19028864, 20812820, 23786080, 24975384, 28543296, 31219230, 33300512, 35679120, 41625640, 47572160, 49950768, 57086592, 62438460, 66601024, 71358240, 83251280, 95144320, 99901536, 124876920, 133202048, 142716480, 166502560, 199803072, 249753840, 285432960, 333005120, 399606144, 499507680, 666010240, 999015360, 1998030720]

約数ペア:

[(1, 1998030720), (2, 999015360), (3, 666010240), (4, 499507680), (5, 399606144), (6, 333005120), (7, 285432960), (8, 249753840), (10, 199803072), (12, 166502560), (14, 142716480), (15, 133202048), (16, 124876920), (20, 99901536), (21, 95144320), (24, 83251280), (28, 71358240), (30, 66601024), (32, 62438460), (35, 57086592), (40, 49950768), (42, 47572160), (48, 41625640), (56, 35679120), (60, 33300512), (64, 31219230), (70, 28543296), (80, 24975384), (84, 23786080), (96, 20812820), (105, 19028864), (112, 17839560), (120, 16650256), (128, 15609615), (140, 14271648), (160, 12487692), (168, 11893040), (192, 10406410), (210, 9514432), (224, 8919780), (240, 8325128), (280, 7135824), (320, 6243846), (336, 5946520), (384, 5203205), (420, 4757216), (448, 4459890), (480, 4162564), (560, 3567912), (640, 3121923), (672, 2973260), (840, 2378608), (896, 2229945), (960, 2081282), (1120, 1783956), (1344, 1486630), (1680, 1189304), (1920, 1040641), (2240, 891978), (2688, 743315), (3360, 594652), (4480, 445989), (6720, 297326), (13440, 148663)]