217424440

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1\times {\mathrm{509}}^1$

素因数の和:760

約数の個数: 64

約数和(自身を含む): 501228000

約数和(自身を除く): 283803560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 181, 236, 295, 362, 472, 509, 590, 724, 905, 1018, 1180, 1448, 1810, 2036, 2360, 2545, 3620, 4072, 5090, 7240, 10180, 10679, 20360, 21358, 30031, 42716, 53395, 60062, 85432, 92129, 106790, 120124, 150155, 184258, 213580, 240248, 300310, 368516, 427160, 460645, 600620, 737032, 921290, 1201240, 1842580, 3685160, 5435611, 10871222, 21742444, 27178055, 43484888, 54356110, 108712220, 217424440]

約数ペア:

[(1, 217424440), (2, 108712220), (4, 54356110), (5, 43484888), (8, 27178055), (10, 21742444), (20, 10871222), (40, 5435611), (59, 3685160), (118, 1842580), (181, 1201240), (236, 921290), (295, 737032), (362, 600620), (472, 460645), (509, 427160), (590, 368516), (724, 300310), (905, 240248), (1018, 213580), (1180, 184258), (1448, 150155), (1810, 120124), (2036, 106790), (2360, 92129), (2545, 85432), (3620, 60062), (4072, 53395), (5090, 42716), (7240, 30031), (10180, 21358), (10679, 20360)]