13891720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 34214400

約数和(自身を除く): 20322680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 248, 310, 340, 527, 620, 659, 680, 1054, 1240, 1318, 2108, 2635, 2636, 3295, 4216, 5270, 5272, 6590, 10540, 11203, 13180, 20429, 21080, 22406, 26360, 40858, 44812, 56015, 81716, 89624, 102145, 112030, 163432, 204290, 224060, 347293, 408580, 448120, 694586, 817160, 1389172, 1736465, 2778344, 3472930, 6945860, 13891720]

約数ペア:

[(1, 13891720), (2, 6945860), (4, 3472930), (5, 2778344), (8, 1736465), (10, 1389172), (17, 817160), (20, 694586), (31, 448120), (34, 408580), (40, 347293), (62, 224060), (68, 204290), (85, 163432), (124, 112030), (136, 102145), (155, 89624), (170, 81716), (248, 56015), (310, 44812), (340, 40858), (527, 26360), (620, 22406), (659, 21080), (680, 20429), (1054, 13180), (1240, 11203), (1318, 10540), (2108, 6590), (2635, 5272), (2636, 5270), (3295, 4216)]