18662800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:165

約数の個数: 120

約数和(自身を含む): 50102696

約数和(自身を除く): 31439896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 37, 40, 50, 52, 65, 74, 80, 97, 100, 104, 130, 148, 185, 194, 200, 208, 260, 296, 325, 370, 388, 400, 481, 485, 520, 592, 650, 740, 776, 925, 962, 970, 1040, 1261, 1300, 1480, 1552, 1850, 1924, 1940, 2405, 2425, 2522, 2600, 2960, 3589, 3700, 3848, 3880, 4810, 4850, 5044, 5200, 6305, 7178, 7400, 7696, 7760, 9620, 9700, 10088, 12025, 12610, 14356, 14800, 17945, 19240, 19400, 20176, 24050, 25220, 28712, 31525, 35890, 38480, 38800, 46657, 48100, 50440, 57424, 63050, 71780, 89725, 93314, 96200, 100880, 126100, 143560, 179450, 186628, 192400, 233285, 252200, 287120, 358900, 373256, 466570, 504400, 717800, 746512, 933140, 1166425, 1435600, 1866280, 2332850, 3732560, 4665700, 9331400, 18662800]

約数ペア:

[(1, 18662800), (2, 9331400), (4, 4665700), (5, 3732560), (8, 2332850), (10, 1866280), (13, 1435600), (16, 1166425), (20, 933140), (25, 746512), (26, 717800), (37, 504400), (40, 466570), (50, 373256), (52, 358900), (65, 287120), (74, 252200), (80, 233285), (97, 192400), (100, 186628), (104, 179450), (130, 143560), (148, 126100), (185, 100880), (194, 96200), (200, 93314), (208, 89725), (260, 71780), (296, 63050), (325, 57424), (370, 50440), (388, 48100), (400, 46657), (481, 38800), (485, 38480), (520, 35890), (592, 31525), (650, 28712), (740, 25220), (776, 24050), (925, 20176), (962, 19400), (970, 19240), (1040, 17945), (1261, 14800), (1300, 14356), (1480, 12610), (1552, 12025), (1850, 10088), (1924, 9700), (1940, 9620), (2405, 7760), (2425, 7696), (2522, 7400), (2600, 7178), (2960, 6305), (3589, 5200), (3700, 5044), (3848, 4850), (3880, 4810)]