18877480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 96

約数和(自身を含む): 47744640

約数和(自身を除く): 28867160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 71, 85, 92, 115, 136, 142, 170, 184, 230, 284, 289, 340, 355, 391, 460, 568, 578, 680, 710, 782, 920, 1156, 1207, 1420, 1445, 1564, 1633, 1955, 2312, 2414, 2840, 2890, 3128, 3266, 3910, 4828, 5780, 6035, 6532, 6647, 7820, 8165, 9656, 11560, 12070, 13064, 13294, 15640, 16330, 20519, 24140, 26588, 27761, 32660, 33235, 41038, 48280, 53176, 55522, 65320, 66470, 82076, 102595, 111044, 132940, 138805, 164152, 205190, 222088, 265880, 277610, 410380, 471937, 555220, 820760, 943874, 1110440, 1887748, 2359685, 3775496, 4719370, 9438740, 18877480]

約数ペア:

[(1, 18877480), (2, 9438740), (4, 4719370), (5, 3775496), (8, 2359685), (10, 1887748), (17, 1110440), (20, 943874), (23, 820760), (34, 555220), (40, 471937), (46, 410380), (68, 277610), (71, 265880), (85, 222088), (92, 205190), (115, 164152), (136, 138805), (142, 132940), (170, 111044), (184, 102595), (230, 82076), (284, 66470), (289, 65320), (340, 55522), (355, 53176), (391, 48280), (460, 41038), (568, 33235), (578, 32660), (680, 27761), (710, 26588), (782, 24140), (920, 20519), (1156, 16330), (1207, 15640), (1420, 13294), (1445, 13064), (1564, 12070), (1633, 11560), (1955, 9656), (2312, 8165), (2414, 7820), (2840, 6647), (2890, 6532), (3128, 6035), (3266, 5780), (3910, 4828)]