821178800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2357}}^1$

素因数の和:2455

約数の個数: 120

約数和(自身を含む): 2157268176

約数和(自身を除く): 1336089376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 67, 80, 100, 104, 130, 134, 200, 208, 260, 268, 325, 335, 400, 520, 536, 650, 670, 871, 1040, 1072, 1300, 1340, 1675, 1742, 2357, 2600, 2680, 3350, 3484, 4355, 4714, 5200, 5360, 6700, 6968, 8710, 9428, 11785, 13400, 13936, 17420, 18856, 21775, 23570, 26800, 30641, 34840, 37712, 43550, 47140, 58925, 61282, 69680, 87100, 94280, 117850, 122564, 153205, 157919, 174200, 188560, 235700, 245128, 306410, 315838, 348400, 471400, 490256, 612820, 631676, 766025, 789595, 942800, 1225640, 1263352, 1532050, 1579190, 2052947, 2451280, 2526704, 3064100, 3158380, 3947975, 4105894, 6128200, 6316760, 7895950, 8211788, 10264735, 12256400, 12633520, 15791900, 16423576, 20529470, 31583800, 32847152, 41058940, 51323675, 63167600, 82117880, 102647350, 164235760, 205294700, 410589400, 821178800]

約数ペア:

[(1, 821178800), (2, 410589400), (4, 205294700), (5, 164235760), (8, 102647350), (10, 82117880), (13, 63167600), (16, 51323675), (20, 41058940), (25, 32847152), (26, 31583800), (40, 20529470), (50, 16423576), (52, 15791900), (65, 12633520), (67, 12256400), (80, 10264735), (100, 8211788), (104, 7895950), (130, 6316760), (134, 6128200), (200, 4105894), (208, 3947975), (260, 3158380), (268, 3064100), (325, 2526704), (335, 2451280), (400, 2052947), (520, 1579190), (536, 1532050), (650, 1263352), (670, 1225640), (871, 942800), (1040, 789595), (1072, 766025), (1300, 631676), (1340, 612820), (1675, 490256), (1742, 471400), (2357, 348400), (2600, 315838), (2680, 306410), (3350, 245128), (3484, 235700), (4355, 188560), (4714, 174200), (5200, 157919), (5360, 153205), (6700, 122564), (6968, 117850), (8710, 94280), (9428, 87100), (11785, 69680), (13400, 61282), (13936, 58925), (17420, 47140), (18856, 43550), (21775, 37712), (23570, 34840), (26800, 30641)]