1815738040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{449}}^1$

素因数の和:809

約数の個数: 128

約数和(自身を含む): 4578120000

約数和(自身を除く): 2762381960

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 313, 323, 340, 380, 449, 626, 646, 680, 760, 898, 1252, 1292, 1565, 1615, 1796, 2245, 2504, 2584, 3130, 3230, 3592, 4490, 5321, 5947, 6260, 6460, 7633, 8531, 8980, 10642, 11894, 12520, 12920, 15266, 17062, 17960, 21284, 23788, 26605, 29735, 30532, 34124, 38165, 42568, 42655, 47576, 53210, 59470, 61064, 68248, 76330, 85310, 101099, 106420, 118940, 140537, 145027, 152660, 170620, 202198, 212840, 237880, 281074, 290054, 305320, 341240, 404396, 505495, 562148, 580108, 702685, 725135, 808792, 1010990, 1124296, 1160216, 1405370, 1450270, 2021980, 2389129, 2670203, 2810740, 2900540, 4043960, 4778258, 5340406, 5621480, 5801080, 9556516, 10680812, 11945645, 13351015, 19113032, 21361624, 23891290, 26702030, 45393451, 47782580, 53404060, 90786902, 95565160, 106808120, 181573804, 226967255, 363147608, 453934510, 907869020, 1815738040]

約数ペア:

[(1, 1815738040), (2, 907869020), (4, 453934510), (5, 363147608), (8, 226967255), (10, 181573804), (17, 106808120), (19, 95565160), (20, 90786902), (34, 53404060), (38, 47782580), (40, 45393451), (68, 26702030), (76, 23891290), (85, 21361624), (95, 19113032), (136, 13351015), (152, 11945645), (170, 10680812), (190, 9556516), (313, 5801080), (323, 5621480), (340, 5340406), (380, 4778258), (449, 4043960), (626, 2900540), (646, 2810740), (680, 2670203), (760, 2389129), (898, 2021980), (1252, 1450270), (1292, 1405370), (1565, 1160216), (1615, 1124296), (1796, 1010990), (2245, 808792), (2504, 725135), (2584, 702685), (3130, 580108), (3230, 562148), (3592, 505495), (4490, 404396), (5321, 341240), (5947, 305320), (6260, 290054), (6460, 281074), (7633, 237880), (8531, 212840), (8980, 202198), (10642, 170620), (11894, 152660), (12520, 145027), (12920, 140537), (15266, 118940), (17062, 106420), (17960, 101099), (21284, 85310), (23788, 76330), (26605, 68248), (29735, 61064), (30532, 59470), (34124, 53210), (38165, 47576), (42568, 42655)]