18568420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4201}}^1$

素因数の和:4240

約数の個数: 48

約数和(自身を含む): 44473968

約数和(自身を除く): 25905548

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4201, 4420, 8402, 16804, 21005, 42010, 54613, 71417, 84020, 109226, 142834, 218452, 273065, 285668, 357085, 546130, 714170, 928421, 1092260, 1428340, 1856842, 3713684, 4642105, 9284210, 18568420]

約数ペア:

[(1, 18568420), (2, 9284210), (4, 4642105), (5, 3713684), (10, 1856842), (13, 1428340), (17, 1092260), (20, 928421), (26, 714170), (34, 546130), (52, 357085), (65, 285668), (68, 273065), (85, 218452), (130, 142834), (170, 109226), (221, 84020), (260, 71417), (340, 54613), (442, 42010), (884, 21005), (1105, 16804), (2210, 8402), (4201, 4420)]