788361980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{5399}}^1$

素因数の和:5571

約数の個数: 72

約数和(自身を含む): 1939140000

約数和(自身を除く): 1150778020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 149, 196, 245, 298, 490, 596, 745, 980, 1043, 1490, 2086, 2980, 4172, 5215, 5399, 7301, 10430, 10798, 14602, 20860, 21596, 26995, 29204, 36505, 37793, 53990, 73010, 75586, 107980, 146020, 151172, 188965, 264551, 377930, 529102, 755860, 804451, 1058204, 1322755, 1608902, 2645510, 3217804, 4022255, 5291020, 5631157, 8044510, 11262314, 16089020, 22524628, 28155785, 39418099, 56311570, 78836198, 112623140, 157672396, 197090495, 394180990, 788361980]

約数ペア:

[(1, 788361980), (2, 394180990), (4, 197090495), (5, 157672396), (7, 112623140), (10, 78836198), (14, 56311570), (20, 39418099), (28, 28155785), (35, 22524628), (49, 16089020), (70, 11262314), (98, 8044510), (140, 5631157), (149, 5291020), (196, 4022255), (245, 3217804), (298, 2645510), (490, 1608902), (596, 1322755), (745, 1058204), (980, 804451), (1043, 755860), (1490, 529102), (2086, 377930), (2980, 264551), (4172, 188965), (5215, 151172), (5399, 146020), (7301, 107980), (10430, 75586), (10798, 73010), (14602, 53990), (20860, 37793), (21596, 36505), (26995, 29204)]