28115880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:363

約数の個数: 128

約数和(自身を含む): 92534400

約数和(自身を除く): 64418520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 67, 78, 104, 120, 130, 134, 156, 195, 201, 260, 268, 269, 312, 335, 390, 402, 520, 536, 538, 670, 780, 804, 807, 871, 1005, 1076, 1340, 1345, 1560, 1608, 1614, 1742, 2010, 2152, 2613, 2680, 2690, 3228, 3484, 3497, 4020, 4035, 4355, 5226, 5380, 6456, 6968, 6994, 8040, 8070, 8710, 10452, 10491, 10760, 13065, 13988, 16140, 17420, 17485, 18023, 20904, 20982, 26130, 27976, 32280, 34840, 34970, 36046, 41964, 52260, 52455, 54069, 69940, 72092, 83928, 90115, 104520, 104910, 108138, 139880, 144184, 180230, 209820, 216276, 234299, 270345, 360460, 419640, 432552, 468598, 540690, 702897, 720920, 937196, 1081380, 1171495, 1405794, 1874392, 2162760, 2342990, 2811588, 3514485, 4685980, 5623176, 7028970, 9371960, 14057940, 28115880]

約数ペア:

[(1, 28115880), (2, 14057940), (3, 9371960), (4, 7028970), (5, 5623176), (6, 4685980), (8, 3514485), (10, 2811588), (12, 2342990), (13, 2162760), (15, 1874392), (20, 1405794), (24, 1171495), (26, 1081380), (30, 937196), (39, 720920), (40, 702897), (52, 540690), (60, 468598), (65, 432552), (67, 419640), (78, 360460), (104, 270345), (120, 234299), (130, 216276), (134, 209820), (156, 180230), (195, 144184), (201, 139880), (260, 108138), (268, 104910), (269, 104520), (312, 90115), (335, 83928), (390, 72092), (402, 69940), (520, 54069), (536, 52455), (538, 52260), (670, 41964), (780, 36046), (804, 34970), (807, 34840), (871, 32280), (1005, 27976), (1076, 26130), (1340, 20982), (1345, 20904), (1560, 18023), (1608, 17485), (1614, 17420), (1742, 16140), (2010, 13988), (2152, 13065), (2613, 10760), (2680, 10491), (2690, 10452), (3228, 8710), (3484, 8070), (3497, 8040), (4020, 6994), (4035, 6968), (4355, 6456), (5226, 5380)]