1553784156980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{20711599}}^1$

素因数の和:20711661

約数の個数: 72

約数和(自身を含む): 3702239923200

約数和(自身を除く): 2148455766220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 484, 605, 620, 682, 1210, 1364, 1705, 2420, 3410, 3751, 6820, 7502, 15004, 18755, 37510, 75020, 20711599, 41423198, 82846396, 103557995, 207115990, 227827589, 414231980, 455655178, 642059569, 911310356, 1139137945, 1284119138, 2278275890, 2506103479, 2568238276, 3210297845, 4556551780, 5012206958, 6420595690, 7062655259, 10024413916, 12530517395, 12841191380, 14125310518, 25061034790, 28250621036, 35313276295, 50122069580, 70626552590, 77689207849, 141253105180, 155378415698, 310756831396, 388446039245, 776892078490, 1553784156980]

約数ペア:

[(1, 1553784156980), (2, 776892078490), (4, 388446039245), (5, 310756831396), (10, 155378415698), (11, 141253105180), (20, 77689207849), (22, 70626552590), (31, 50122069580), (44, 35313276295), (55, 28250621036), (62, 25061034790), (110, 14125310518), (121, 12841191380), (124, 12530517395), (155, 10024413916), (220, 7062655259), (242, 6420595690), (310, 5012206958), (341, 4556551780), (484, 3210297845), (605, 2568238276), (620, 2506103479), (682, 2278275890), (1210, 1284119138), (1364, 1139137945), (1705, 911310356), (2420, 642059569), (3410, 455655178), (3751, 414231980), (6820, 227827589), (7502, 207115990), (15004, 103557995), (18755, 82846396), (37510, 41423198), (75020, 20711599)]