81995640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{35963}}^1$

素因数の和:35996

約数の個数: 64

約数和(自身を含む): 258940800

約数和(自身を除く): 176945160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 35963, 71926, 107889, 143852, 179815, 215778, 287704, 359630, 431556, 539445, 683297, 719260, 863112, 1078890, 1366594, 1438520, 2049891, 2157780, 2733188, 3416485, 4099782, 4315560, 5466376, 6832970, 8199564, 10249455, 13665940, 16399128, 20498910, 27331880, 40997820, 81995640]

約数ペア:

[(1, 81995640), (2, 40997820), (3, 27331880), (4, 20498910), (5, 16399128), (6, 13665940), (8, 10249455), (10, 8199564), (12, 6832970), (15, 5466376), (19, 4315560), (20, 4099782), (24, 3416485), (30, 2733188), (38, 2157780), (40, 2049891), (57, 1438520), (60, 1366594), (76, 1078890), (95, 863112), (114, 719260), (120, 683297), (152, 539445), (190, 431556), (228, 359630), (285, 287704), (380, 215778), (456, 179815), (570, 143852), (760, 107889), (1140, 71926), (2280, 35963)]