389655860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{11887}}^1$

素因数の和:12056

約数の個数: 48

約数和(自身を含む): 898732800

約数和(自身を除く): 509076940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 596, 745, 1490, 1639, 2980, 3278, 6556, 8195, 11887, 16390, 23774, 32780, 47548, 59435, 118870, 130757, 237740, 261514, 523028, 653785, 1307570, 1771163, 2615140, 3542326, 7084652, 8855815, 17711630, 19482793, 35423260, 38965586, 77931172, 97413965, 194827930, 389655860]

約数ペア:

[(1, 389655860), (2, 194827930), (4, 97413965), (5, 77931172), (10, 38965586), (11, 35423260), (20, 19482793), (22, 17711630), (44, 8855815), (55, 7084652), (110, 3542326), (149, 2615140), (220, 1771163), (298, 1307570), (596, 653785), (745, 523028), (1490, 261514), (1639, 237740), (2980, 130757), (3278, 118870), (6556, 59435), (8195, 47548), (11887, 32780), (16390, 23774)]