80499900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20641}}^1$

素因数の和:20671

約数の個数: 72

約数和(自身を含む): 250841584

約数和(自身を除く): 170341684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 20641, 41282, 61923, 82564, 103205, 123846, 206410, 247692, 268333, 309615, 412820, 516025, 536666, 619230, 804999, 1032050, 1073332, 1238460, 1341665, 1548075, 1609998, 2064100, 2683330, 3096150, 3219996, 4024995, 5366660, 6192300, 6708325, 8049990, 13416650, 16099980, 20124975, 26833300, 40249950, 80499900]

約数ペア:

[(1, 80499900), (2, 40249950), (3, 26833300), (4, 20124975), (5, 16099980), (6, 13416650), (10, 8049990), (12, 6708325), (13, 6192300), (15, 5366660), (20, 4024995), (25, 3219996), (26, 3096150), (30, 2683330), (39, 2064100), (50, 1609998), (52, 1548075), (60, 1341665), (65, 1238460), (75, 1073332), (78, 1032050), (100, 804999), (130, 619230), (150, 536666), (156, 516025), (195, 412820), (260, 309615), (300, 268333), (325, 247692), (390, 206410), (650, 123846), (780, 103205), (975, 82564), (1300, 61923), (1950, 41282), (3900, 20641)]