161465980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 401393664

約数和(自身を除く): 239927684

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 31, 46, 52, 62, 65, 67, 92, 115, 124, 130, 134, 155, 169, 230, 260, 268, 299, 310, 335, 338, 403, 460, 598, 620, 670, 676, 713, 806, 845, 871, 1196, 1340, 1426, 1495, 1541, 1612, 1690, 1742, 2015, 2077, 2852, 2990, 3082, 3380, 3484, 3565, 3887, 4030, 4154, 4355, 5239, 5980, 6164, 7130, 7705, 7774, 8060, 8308, 8710, 9269, 10385, 10478, 11323, 14260, 15410, 15548, 17420, 18538, 19435, 20033, 20770, 20956, 22646, 26195, 27001, 30820, 37076, 38870, 40066, 41540, 45292, 46345, 47771, 52390, 54002, 56615, 77740, 80132, 92690, 95542, 100165, 104780, 108004, 113230, 120497, 135005, 185380, 191084, 200330, 226460, 238855, 240994, 260429, 270010, 351013, 400660, 477710, 481988, 520858, 540020, 602485, 621023, 702026, 955420, 1041716, 1204970, 1242046, 1302145, 1404052, 1755065, 2409940, 2484092, 2604290, 3105115, 3510130, 5208580, 6210230, 7020260, 8073299, 12420460, 16146598, 32293196, 40366495, 80732990, 161465980]

約数ペア:

[(1, 161465980), (2, 80732990), (4, 40366495), (5, 32293196), (10, 16146598), (13, 12420460), (20, 8073299), (23, 7020260), (26, 6210230), (31, 5208580), (46, 3510130), (52, 3105115), (62, 2604290), (65, 2484092), (67, 2409940), (92, 1755065), (115, 1404052), (124, 1302145), (130, 1242046), (134, 1204970), (155, 1041716), (169, 955420), (230, 702026), (260, 621023), (268, 602485), (299, 540020), (310, 520858), (335, 481988), (338, 477710), (403, 400660), (460, 351013), (598, 270010), (620, 260429), (670, 240994), (676, 238855), (713, 226460), (806, 200330), (845, 191084), (871, 185380), (1196, 135005), (1340, 120497), (1426, 113230), (1495, 108004), (1541, 104780), (1612, 100165), (1690, 95542), (1742, 92690), (2015, 80132), (2077, 77740), (2852, 56615), (2990, 54002), (3082, 52390), (3380, 47771), (3484, 46345), (3565, 45292), (3887, 41540), (4030, 40066), (4154, 38870), (4355, 37076), (5239, 30820), (5980, 27001), (6164, 26195), (7130, 22646), (7705, 20956), (7774, 20770), (8060, 20033), (8308, 19435), (8710, 18538), (9269, 17420), (10385, 15548), (10478, 15410), (11323, 14260)]