28935100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 67200560

約数和(自身を除く): 38265460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 97, 100, 157, 190, 194, 314, 380, 388, 475, 485, 628, 785, 950, 970, 1570, 1843, 1900, 1940, 2425, 2983, 3140, 3686, 3925, 4850, 5966, 7372, 7850, 9215, 9700, 11932, 14915, 15229, 15700, 18430, 29830, 30458, 36860, 46075, 59660, 60916, 74575, 76145, 92150, 149150, 152290, 184300, 289351, 298300, 304580, 380725, 578702, 761450, 1157404, 1446755, 1522900, 2893510, 5787020, 7233775, 14467550, 28935100]

約数ペア:

[(1, 28935100), (2, 14467550), (4, 7233775), (5, 5787020), (10, 2893510), (19, 1522900), (20, 1446755), (25, 1157404), (38, 761450), (50, 578702), (76, 380725), (95, 304580), (97, 298300), (100, 289351), (157, 184300), (190, 152290), (194, 149150), (314, 92150), (380, 76145), (388, 74575), (475, 60916), (485, 59660), (628, 46075), (785, 36860), (950, 30458), (970, 29830), (1570, 18430), (1843, 15700), (1900, 15229), (1940, 14915), (2425, 11932), (2983, 9700), (3140, 9215), (3686, 7850), (3925, 7372), (4850, 5966)]