821497140

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1453}}^1$

素因数の和:1823

約数の個数: 120

約数和(自身を含む): 2586229800

約数和(自身を除く): 1764732660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 349, 405, 540, 698, 810, 1047, 1396, 1453, 1620, 1745, 2094, 2906, 3141, 3490, 4188, 4359, 5235, 5812, 6282, 6980, 7265, 8718, 9423, 10470, 12564, 13077, 14530, 15705, 17436, 18846, 20940, 21795, 26154, 28269, 29060, 31410, 37692, 39231, 43590, 47115, 52308, 56538, 62820, 65385, 78462, 87180, 94230, 113076, 117693, 130770, 141345, 156924, 188460, 196155, 235386, 261540, 282690, 392310, 470772, 507097, 565380, 588465, 784620, 1014194, 1176930, 1521291, 2028388, 2353860, 2535485, 3042582, 4563873, 5070970, 6085164, 7606455, 9127746, 10141940, 13691619, 15212910, 18255492, 22819365, 27383238, 30425820, 41074857, 45638730, 54766476, 68458095, 82149714, 91277460, 136916190, 164299428, 205374285, 273832380, 410748570, 821497140]

約数ペア:

[(1, 821497140), (2, 410748570), (3, 273832380), (4, 205374285), (5, 164299428), (6, 136916190), (9, 91277460), (10, 82149714), (12, 68458095), (15, 54766476), (18, 45638730), (20, 41074857), (27, 30425820), (30, 27383238), (36, 22819365), (45, 18255492), (54, 15212910), (60, 13691619), (81, 10141940), (90, 9127746), (108, 7606455), (135, 6085164), (162, 5070970), (180, 4563873), (270, 3042582), (324, 2535485), (349, 2353860), (405, 2028388), (540, 1521291), (698, 1176930), (810, 1014194), (1047, 784620), (1396, 588465), (1453, 565380), (1620, 507097), (1745, 470772), (2094, 392310), (2906, 282690), (3141, 261540), (3490, 235386), (4188, 196155), (4359, 188460), (5235, 156924), (5812, 141345), (6282, 130770), (6980, 117693), (7265, 113076), (8718, 94230), (9423, 87180), (10470, 78462), (12564, 65385), (13077, 62820), (14530, 56538), (15705, 52308), (17436, 47115), (18846, 43590), (20940, 39231), (21795, 37692), (26154, 31410), (28269, 29060)]