15705913900

素因数分解:

$2^2\times 5^2\times {\mathrm{163}}^1\times {\mathrm{389}}^1\times {\mathrm{2477}}^1$

素因数の和:3043

約数の個数: 72

約数和(自身を含む): 34392954960

約数和(自身を除く): 18687041060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 163, 326, 389, 652, 778, 815, 1556, 1630, 1945, 2477, 3260, 3890, 4075, 4954, 7780, 8150, 9725, 9908, 12385, 16300, 19450, 24770, 38900, 49540, 61925, 63407, 123850, 126814, 247700, 253628, 317035, 403751, 634070, 807502, 963553, 1268140, 1585175, 1615004, 1927106, 2018755, 3170350, 3854212, 4037510, 4817765, 6340700, 8075020, 9635530, 10093775, 19271060, 20187550, 24088825, 40375100, 48177650, 96355300, 157059139, 314118278, 628236556, 785295695, 1570591390, 3141182780, 3926478475, 7852956950, 15705913900]

約数ペア:

[(1, 15705913900), (2, 7852956950), (4, 3926478475), (5, 3141182780), (10, 1570591390), (20, 785295695), (25, 628236556), (50, 314118278), (100, 157059139), (163, 96355300), (326, 48177650), (389, 40375100), (652, 24088825), (778, 20187550), (815, 19271060), (1556, 10093775), (1630, 9635530), (1945, 8075020), (2477, 6340700), (3260, 4817765), (3890, 4037510), (4075, 3854212), (4954, 3170350), (7780, 2018755), (8150, 1927106), (9725, 1615004), (9908, 1585175), (12385, 1268140), (16300, 963553), (19450, 807502), (24770, 634070), (38900, 403751), (49540, 317035), (61925, 253628), (63407, 247700), (123850, 126814)]