17991100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:607

約数の個数: 72

約数和(自身を含む): 43590960

約数和(自身を除く): 25599860

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 50, 68, 76, 85, 95, 100, 170, 190, 323, 340, 380, 425, 475, 557, 646, 850, 950, 1114, 1292, 1615, 1700, 1900, 2228, 2785, 3230, 5570, 6460, 8075, 9469, 10583, 11140, 13925, 16150, 18938, 21166, 27850, 32300, 37876, 42332, 47345, 52915, 55700, 94690, 105830, 179911, 189380, 211660, 236725, 264575, 359822, 473450, 529150, 719644, 899555, 946900, 1058300, 1799110, 3598220, 4497775, 8995550, 17991100]

約数ペア:

[(1, 17991100), (2, 8995550), (4, 4497775), (5, 3598220), (10, 1799110), (17, 1058300), (19, 946900), (20, 899555), (25, 719644), (34, 529150), (38, 473450), (50, 359822), (68, 264575), (76, 236725), (85, 211660), (95, 189380), (100, 179911), (170, 105830), (190, 94690), (323, 55700), (340, 52915), (380, 47345), (425, 42332), (475, 37876), (557, 32300), (646, 27850), (850, 21166), (950, 18938), (1114, 16150), (1292, 13925), (1615, 11140), (1700, 10583), (1900, 9469), (2228, 8075), (2785, 6460), (3230, 5570)]