80405700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:354

約数の個数: 144

約数和(自身を含む): 249317376

約数和(自身を除く): 168911676

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 25, 30, 43, 46, 50, 60, 69, 75, 86, 92, 100, 115, 129, 138, 150, 172, 215, 230, 258, 271, 276, 300, 345, 430, 460, 516, 542, 575, 645, 690, 813, 860, 989, 1075, 1084, 1150, 1290, 1355, 1380, 1626, 1725, 1978, 2150, 2300, 2580, 2710, 2967, 3225, 3252, 3450, 3956, 4065, 4300, 4945, 5420, 5934, 6233, 6450, 6775, 6900, 8130, 9890, 11653, 11868, 12466, 12900, 13550, 14835, 16260, 18699, 19780, 20325, 23306, 24725, 24932, 27100, 29670, 31165, 34959, 37398, 40650, 46612, 49450, 58265, 59340, 62330, 69918, 74175, 74796, 81300, 93495, 98900, 116530, 124660, 139836, 148350, 155825, 174795, 186990, 233060, 268019, 291325, 296700, 311650, 349590, 373980, 467475, 536038, 582650, 623300, 699180, 804057, 873975, 934950, 1072076, 1165300, 1340095, 1608114, 1747950, 1869900, 2680190, 3216228, 3495900, 4020285, 5360380, 6700475, 8040570, 13400950, 16081140, 20101425, 26801900, 40202850, 80405700]

約数ペア:

[(1, 80405700), (2, 40202850), (3, 26801900), (4, 20101425), (5, 16081140), (6, 13400950), (10, 8040570), (12, 6700475), (15, 5360380), (20, 4020285), (23, 3495900), (25, 3216228), (30, 2680190), (43, 1869900), (46, 1747950), (50, 1608114), (60, 1340095), (69, 1165300), (75, 1072076), (86, 934950), (92, 873975), (100, 804057), (115, 699180), (129, 623300), (138, 582650), (150, 536038), (172, 467475), (215, 373980), (230, 349590), (258, 311650), (271, 296700), (276, 291325), (300, 268019), (345, 233060), (430, 186990), (460, 174795), (516, 155825), (542, 148350), (575, 139836), (645, 124660), (690, 116530), (813, 98900), (860, 93495), (989, 81300), (1075, 74796), (1084, 74175), (1150, 69918), (1290, 62330), (1355, 59340), (1380, 58265), (1626, 49450), (1725, 46612), (1978, 40650), (2150, 37398), (2300, 34959), (2580, 31165), (2710, 29670), (2967, 27100), (3225, 24932), (3252, 24725), (3450, 23306), (3956, 20325), (4065, 19780), (4300, 18699), (4945, 16260), (5420, 14835), (5934, 13550), (6233, 12900), (6450, 12466), (6775, 11868), (6900, 11653), (8130, 9890)]