660756720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211781}}^1$

素因数の和:211810

約数の個数: 80

約数和(自身を含む): 2205921312

約数和(自身を除く): 1545164592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 211781, 423562, 635343, 847124, 1058905, 1270686, 1694248, 2117810, 2541372, 2753153, 3176715, 3388496, 4235620, 5082744, 5506306, 6353430, 8259459, 8471240, 10165488, 11012612, 12706860, 13765765, 16518918, 16942480, 22025224, 25413720, 27531530, 33037836, 41297295, 44050448, 50827440, 55063060, 66075672, 82594590, 110126120, 132151344, 165189180, 220252240, 330378360, 660756720]

約数ペア:

[(1, 660756720), (2, 330378360), (3, 220252240), (4, 165189180), (5, 132151344), (6, 110126120), (8, 82594590), (10, 66075672), (12, 55063060), (13, 50827440), (15, 44050448), (16, 41297295), (20, 33037836), (24, 27531530), (26, 25413720), (30, 22025224), (39, 16942480), (40, 16518918), (48, 13765765), (52, 12706860), (60, 11012612), (65, 10165488), (78, 8471240), (80, 8259459), (104, 6353430), (120, 5506306), (130, 5082744), (156, 4235620), (195, 3388496), (208, 3176715), (240, 2753153), (260, 2541372), (312, 2117810), (390, 1694248), (520, 1270686), (624, 1058905), (780, 847124), (1040, 635343), (1560, 423562), (3120, 211781)]