628888140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{205519}}^1$

素因数の和:205551

約数の個数: 72

約数和(自身を含む): 2019850560

約数和(自身を除く): 1390962420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 205519, 411038, 616557, 822076, 1027595, 1233114, 1849671, 2055190, 2466228, 3082785, 3493823, 3699342, 4110380, 6165570, 6987646, 7398684, 9248355, 10481469, 12331140, 13975292, 17469115, 18496710, 20962938, 31444407, 34938230, 36993420, 41925876, 52407345, 62888814, 69876460, 104814690, 125777628, 157222035, 209629380, 314444070, 628888140]

約数ペア:

[(1, 628888140), (2, 314444070), (3, 209629380), (4, 157222035), (5, 125777628), (6, 104814690), (9, 69876460), (10, 62888814), (12, 52407345), (15, 41925876), (17, 36993420), (18, 34938230), (20, 31444407), (30, 20962938), (34, 18496710), (36, 17469115), (45, 13975292), (51, 12331140), (60, 10481469), (68, 9248355), (85, 7398684), (90, 6987646), (102, 6165570), (153, 4110380), (170, 3699342), (180, 3493823), (204, 3082785), (255, 2466228), (306, 2055190), (340, 1849671), (510, 1233114), (612, 1027595), (765, 822076), (1020, 616557), (1530, 411038), (3060, 205519)]