1998240

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 6604416

約数和(自身を除く): 4606176

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 80, 92, 96, 115, 120, 138, 160, 181, 184, 230, 240, 276, 345, 362, 368, 460, 480, 543, 552, 690, 724, 736, 905, 920, 1086, 1104, 1380, 1448, 1810, 1840, 2172, 2208, 2715, 2760, 2896, 3620, 3680, 4163, 4344, 5430, 5520, 5792, 7240, 8326, 8688, 10860, 11040, 12489, 14480, 16652, 17376, 20815, 21720, 24978, 28960, 33304, 41630, 43440, 49956, 62445, 66608, 83260, 86880, 99912, 124890, 133216, 166520, 199824, 249780, 333040, 399648, 499560, 666080, 999120, 1998240]

約数ペア:

[(1, 1998240), (2, 999120), (3, 666080), (4, 499560), (5, 399648), (6, 333040), (8, 249780), (10, 199824), (12, 166520), (15, 133216), (16, 124890), (20, 99912), (23, 86880), (24, 83260), (30, 66608), (32, 62445), (40, 49956), (46, 43440), (48, 41630), (60, 33304), (69, 28960), (80, 24978), (92, 21720), (96, 20815), (115, 17376), (120, 16652), (138, 14480), (160, 12489), (181, 11040), (184, 10860), (230, 8688), (240, 8326), (276, 7240), (345, 5792), (362, 5520), (368, 5430), (460, 4344), (480, 4163), (543, 3680), (552, 3620), (690, 2896), (724, 2760), (736, 2715), (905, 2208), (920, 2172), (1086, 1840), (1104, 1810), (1380, 1448)]