31243005

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 56862000

約数和(自身を除く): 25618995

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 89, 145, 261, 267, 269, 435, 445, 801, 807, 1305, 1335, 1345, 2421, 2581, 4005, 4035, 7743, 7801, 12105, 12905, 23229, 23403, 23941, 38715, 39005, 70209, 71823, 116145, 117015, 119705, 215469, 351045, 359115, 694289, 1077345, 2082867, 3471445, 6248601, 10414335, 31243005]

約数ペア:

[(1, 31243005), (3, 10414335), (5, 6248601), (9, 3471445), (15, 2082867), (29, 1077345), (45, 694289), (87, 359115), (89, 351045), (145, 215469), (261, 119705), (267, 117015), (269, 116145), (435, 71823), (445, 70209), (801, 39005), (807, 38715), (1305, 23941), (1335, 23403), (1345, 23229), (2421, 12905), (2581, 12105), (4005, 7801), (4035, 7743)]