398971340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{5821}}^1$

素因数の和:6002

約数の個数: 48

約数和(自身を含む): 880286400

約数和(自身を除く): 481315060

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 149, 230, 298, 460, 596, 745, 1490, 2980, 3427, 5821, 6854, 11642, 13708, 17135, 23284, 29105, 34270, 58210, 68540, 116420, 133883, 267766, 535532, 669415, 867329, 1338830, 1734658, 2677660, 3469316, 4336645, 8673290, 17346580, 19948567, 39897134, 79794268, 99742835, 199485670, 398971340]

約数ペア:

[(1, 398971340), (2, 199485670), (4, 99742835), (5, 79794268), (10, 39897134), (20, 19948567), (23, 17346580), (46, 8673290), (92, 4336645), (115, 3469316), (149, 2677660), (230, 1734658), (298, 1338830), (460, 867329), (596, 669415), (745, 535532), (1490, 267766), (2980, 133883), (3427, 116420), (5821, 68540), (6854, 58210), (11642, 34270), (13708, 29105), (17135, 23284)]