40920480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:359

約数の個数: 144

約数和(自身を含む): 141306984

約数和(自身を除く): 100386504

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 157, 160, 180, 181, 240, 288, 314, 360, 362, 471, 480, 543, 628, 720, 724, 785, 905, 942, 1086, 1256, 1413, 1440, 1448, 1570, 1629, 1810, 1884, 2172, 2355, 2512, 2715, 2826, 2896, 3140, 3258, 3620, 3768, 4344, 4710, 5024, 5430, 5652, 5792, 6280, 6516, 7065, 7240, 7536, 8145, 8688, 9420, 10860, 11304, 12560, 13032, 14130, 14480, 15072, 16290, 17376, 18840, 21720, 22608, 25120, 26064, 28260, 28417, 28960, 32580, 37680, 43440, 45216, 52128, 56520, 56834, 65160, 75360, 85251, 86880, 113040, 113668, 130320, 142085, 170502, 226080, 227336, 255753, 260640, 284170, 341004, 426255, 454672, 511506, 568340, 682008, 852510, 909344, 1023012, 1136680, 1278765, 1364016, 1705020, 2046024, 2273360, 2557530, 2728032, 3410040, 4092048, 4546720, 5115060, 6820080, 8184096, 10230120, 13640160, 20460240, 40920480]

約数ペア:

[(1, 40920480), (2, 20460240), (3, 13640160), (4, 10230120), (5, 8184096), (6, 6820080), (8, 5115060), (9, 4546720), (10, 4092048), (12, 3410040), (15, 2728032), (16, 2557530), (18, 2273360), (20, 2046024), (24, 1705020), (30, 1364016), (32, 1278765), (36, 1136680), (40, 1023012), (45, 909344), (48, 852510), (60, 682008), (72, 568340), (80, 511506), (90, 454672), (96, 426255), (120, 341004), (144, 284170), (157, 260640), (160, 255753), (180, 227336), (181, 226080), (240, 170502), (288, 142085), (314, 130320), (360, 113668), (362, 113040), (471, 86880), (480, 85251), (543, 75360), (628, 65160), (720, 56834), (724, 56520), (785, 52128), (905, 45216), (942, 43440), (1086, 37680), (1256, 32580), (1413, 28960), (1440, 28417), (1448, 28260), (1570, 26064), (1629, 25120), (1810, 22608), (1884, 21720), (2172, 18840), (2355, 17376), (2512, 16290), (2715, 15072), (2826, 14480), (2896, 14130), (3140, 13032), (3258, 12560), (3620, 11304), (3768, 10860), (4344, 9420), (4710, 8688), (5024, 8145), (5430, 7536), (5652, 7240), (5792, 7065), (6280, 6516)]