71952280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 170216640

約数和(自身を除く): 98264360

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 197, 230, 394, 397, 460, 788, 794, 920, 985, 1576, 1588, 1970, 1985, 3176, 3940, 3970, 4531, 7880, 7940, 9062, 9131, 15880, 18124, 18262, 22655, 36248, 36524, 45310, 45655, 73048, 78209, 90620, 91310, 156418, 181240, 182620, 312836, 365240, 391045, 625672, 782090, 1564180, 1798807, 3128360, 3597614, 7195228, 8994035, 14390456, 17988070, 35976140, 71952280]

約数ペア:

[(1, 71952280), (2, 35976140), (4, 17988070), (5, 14390456), (8, 8994035), (10, 7195228), (20, 3597614), (23, 3128360), (40, 1798807), (46, 1564180), (92, 782090), (115, 625672), (184, 391045), (197, 365240), (230, 312836), (394, 182620), (397, 181240), (460, 156418), (788, 91310), (794, 90620), (920, 78209), (985, 73048), (1576, 45655), (1588, 45310), (1970, 36524), (1985, 36248), (3176, 22655), (3940, 18262), (3970, 18124), (4531, 15880), (7880, 9131), (7940, 9062)]