28130700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7213}}^1$

素因数の和:7243

約数の個数: 72

約数和(自身を含む): 87664528

約数和(自身を除く): 59533828

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, 7213, 14426, 21639, 28852, 36065, 43278, 72130, 86556, 93769, 108195, 144260, 180325, 187538, 216390, 281307, 360650, 375076, 432780, 468845, 540975, 562614, 721300, 937690, 1081950, 1125228, 1406535, 1875380, 2163900, 2344225, 2813070, 4688450, 5626140, 7032675, 9376900, 14065350, 28130700]

約数ペア:

[(1, 28130700), (2, 14065350), (3, 9376900), (4, 7032675), (5, 5626140), (6, 4688450), (10, 2813070), (12, 2344225), (13, 2163900), (15, 1875380), (20, 1406535), (25, 1125228), (26, 1081950), (30, 937690), (39, 721300), (50, 562614), (52, 540975), (60, 468845), (65, 432780), (75, 375076), (78, 360650), (100, 281307), (130, 216390), (150, 187538), (156, 180325), (195, 144260), (260, 108195), (300, 93769), (325, 86556), (390, 72130), (650, 43278), (780, 36065), (975, 28852), (1300, 21639), (1950, 14426), (3900, 7213)]