42490840

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:214

約数の個数: 128

約数和(自身を含む): 118080000

約数和(自身を除く): 75589160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 163, 190, 196, 245, 266, 280, 326, 343, 380, 392, 490, 532, 652, 665, 686, 760, 815, 931, 980, 1064, 1141, 1304, 1330, 1372, 1630, 1715, 1862, 1960, 2282, 2660, 2744, 3097, 3260, 3430, 3724, 4564, 4655, 5320, 5705, 6194, 6517, 6520, 6860, 7448, 7987, 9128, 9310, 11410, 12388, 13034, 13720, 15485, 15974, 18620, 21679, 22820, 24776, 26068, 30970, 31948, 32585, 37240, 39935, 43358, 45640, 52136, 55909, 61940, 63896, 65170, 79870, 86716, 108395, 111818, 123880, 130340, 151753, 159740, 173432, 216790, 223636, 260680, 279545, 303506, 319480, 433580, 447272, 559090, 607012, 758765, 867160, 1062271, 1118180, 1214024, 1517530, 2124542, 2236360, 3035060, 4249084, 5311355, 6070120, 8498168, 10622710, 21245420, 42490840]

約数ペア:

[(1, 42490840), (2, 21245420), (4, 10622710), (5, 8498168), (7, 6070120), (8, 5311355), (10, 4249084), (14, 3035060), (19, 2236360), (20, 2124542), (28, 1517530), (35, 1214024), (38, 1118180), (40, 1062271), (49, 867160), (56, 758765), (70, 607012), (76, 559090), (95, 447272), (98, 433580), (133, 319480), (140, 303506), (152, 279545), (163, 260680), (190, 223636), (196, 216790), (245, 173432), (266, 159740), (280, 151753), (326, 130340), (343, 123880), (380, 111818), (392, 108395), (490, 86716), (532, 79870), (652, 65170), (665, 63896), (686, 61940), (760, 55909), (815, 52136), (931, 45640), (980, 43358), (1064, 39935), (1141, 37240), (1304, 32585), (1330, 31948), (1372, 30970), (1630, 26068), (1715, 24776), (1862, 22820), (1960, 21679), (2282, 18620), (2660, 15974), (2744, 15485), (3097, 13720), (3260, 13034), (3430, 12388), (3724, 11410), (4564, 9310), (4655, 9128), (5320, 7987), (5705, 7448), (6194, 6860), (6517, 6520)]