200072990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{991}}^1\times {\mathrm{1553}}^1$

素因数の和:2564

約数の個数: 32

約数和(自身を含む): 388475136

約数和(自身を除く): 188402146

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 991, 1553, 1982, 3106, 4955, 7765, 9910, 12883, 15530, 20189, 25766, 40378, 64415, 100945, 128830, 201890, 1539023, 3078046, 7695115, 15390230, 20007299, 40014598, 100036495, 200072990]

約数ペア:

[(1, 200072990), (2, 100036495), (5, 40014598), (10, 20007299), (13, 15390230), (26, 7695115), (65, 3078046), (130, 1539023), (991, 201890), (1553, 128830), (1982, 100945), (3106, 64415), (4955, 40378), (7765, 25766), (9910, 20189), (12883, 15530)]