18416480

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:172

約数の個数: 96

約数和(自身を含む): 46448640

約数和(自身を除く): 28032160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 47, 62, 79, 80, 94, 124, 155, 158, 160, 188, 235, 248, 310, 316, 376, 395, 470, 496, 620, 632, 752, 790, 940, 992, 1240, 1264, 1457, 1504, 1580, 1880, 2449, 2480, 2528, 2914, 3160, 3713, 3760, 4898, 4960, 5828, 6320, 7285, 7426, 7520, 9796, 11656, 12245, 12640, 14570, 14852, 18565, 19592, 23312, 24490, 29140, 29704, 37130, 39184, 46624, 48980, 58280, 59408, 74260, 78368, 97960, 115103, 116560, 118816, 148520, 195920, 230206, 233120, 297040, 391840, 460412, 575515, 594080, 920824, 1151030, 1841648, 2302060, 3683296, 4604120, 9208240, 18416480]

約数ペア:

[(1, 18416480), (2, 9208240), (4, 4604120), (5, 3683296), (8, 2302060), (10, 1841648), (16, 1151030), (20, 920824), (31, 594080), (32, 575515), (40, 460412), (47, 391840), (62, 297040), (79, 233120), (80, 230206), (94, 195920), (124, 148520), (155, 118816), (158, 116560), (160, 115103), (188, 97960), (235, 78368), (248, 74260), (310, 59408), (316, 58280), (376, 48980), (395, 46624), (470, 39184), (496, 37130), (620, 29704), (632, 29140), (752, 24490), (790, 23312), (940, 19592), (992, 18565), (1240, 14852), (1264, 14570), (1457, 12640), (1504, 12245), (1580, 11656), (1880, 9796), (2449, 7520), (2480, 7426), (2528, 7285), (2914, 6320), (3160, 5828), (3713, 4960), (3760, 4898)]