18736720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{599}}^1$

素因数の和:652

約数の個数: 80

約数和(自身を含む): 48211200

約数和(自身を除く): 29474480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 272, 340, 368, 391, 460, 599, 680, 782, 920, 1198, 1360, 1564, 1840, 1955, 2396, 2995, 3128, 3910, 4792, 5990, 6256, 7820, 9584, 10183, 11980, 13777, 15640, 20366, 23960, 27554, 31280, 40732, 47920, 50915, 55108, 68885, 81464, 101830, 110216, 137770, 162928, 203660, 220432, 234209, 275540, 407320, 468418, 551080, 814640, 936836, 1102160, 1171045, 1873672, 2342090, 3747344, 4684180, 9368360, 18736720]

約数ペア:

[(1, 18736720), (2, 9368360), (4, 4684180), (5, 3747344), (8, 2342090), (10, 1873672), (16, 1171045), (17, 1102160), (20, 936836), (23, 814640), (34, 551080), (40, 468418), (46, 407320), (68, 275540), (80, 234209), (85, 220432), (92, 203660), (115, 162928), (136, 137770), (170, 110216), (184, 101830), (230, 81464), (272, 68885), (340, 55108), (368, 50915), (391, 47920), (460, 40732), (599, 31280), (680, 27554), (782, 23960), (920, 20366), (1198, 15640), (1360, 13777), (1564, 11980), (1840, 10183), (1955, 9584), (2396, 7820), (2995, 6256), (3128, 5990), (3910, 4792)]