20049900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 64308384

約数和(自身を除く): 44258484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 53, 60, 65, 75, 78, 97, 100, 106, 130, 150, 156, 159, 194, 195, 212, 260, 265, 291, 300, 318, 325, 388, 390, 485, 530, 582, 636, 650, 689, 780, 795, 970, 975, 1060, 1164, 1261, 1300, 1325, 1378, 1455, 1590, 1940, 1950, 2067, 2425, 2522, 2650, 2756, 2910, 3180, 3445, 3783, 3900, 3975, 4134, 4850, 5044, 5141, 5300, 5820, 6305, 6890, 7275, 7566, 7950, 8268, 9700, 10282, 10335, 12610, 13780, 14550, 15132, 15423, 15900, 17225, 18915, 20564, 20670, 25220, 25705, 29100, 30846, 31525, 34450, 37830, 41340, 51410, 51675, 61692, 63050, 66833, 68900, 75660, 77115, 94575, 102820, 103350, 126100, 128525, 133666, 154230, 189150, 200499, 206700, 257050, 267332, 308460, 334165, 378300, 385575, 400998, 514100, 668330, 771150, 801996, 1002495, 1336660, 1542300, 1670825, 2004990, 3341650, 4009980, 5012475, 6683300, 10024950, 20049900]

約数ペア:

[(1, 20049900), (2, 10024950), (3, 6683300), (4, 5012475), (5, 4009980), (6, 3341650), (10, 2004990), (12, 1670825), (13, 1542300), (15, 1336660), (20, 1002495), (25, 801996), (26, 771150), (30, 668330), (39, 514100), (50, 400998), (52, 385575), (53, 378300), (60, 334165), (65, 308460), (75, 267332), (78, 257050), (97, 206700), (100, 200499), (106, 189150), (130, 154230), (150, 133666), (156, 128525), (159, 126100), (194, 103350), (195, 102820), (212, 94575), (260, 77115), (265, 75660), (291, 68900), (300, 66833), (318, 63050), (325, 61692), (388, 51675), (390, 51410), (485, 41340), (530, 37830), (582, 34450), (636, 31525), (650, 30846), (689, 29100), (780, 25705), (795, 25220), (970, 20670), (975, 20564), (1060, 18915), (1164, 17225), (1261, 15900), (1300, 15423), (1325, 15132), (1378, 14550), (1455, 13780), (1590, 12610), (1940, 10335), (1950, 10282), (2067, 9700), (2425, 8268), (2522, 7950), (2650, 7566), (2756, 7275), (2910, 6890), (3180, 6305), (3445, 5820), (3783, 5300), (3900, 5141), (3975, 5044), (4134, 4850)]