71551980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:448

約数の個数: 144

約数和(自身を含む): 233906400

約数和(自身を除く): 162354420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 67, 68, 85, 90, 102, 134, 153, 170, 180, 201, 204, 255, 268, 306, 335, 340, 349, 402, 510, 603, 612, 670, 698, 765, 804, 1005, 1020, 1047, 1139, 1206, 1340, 1396, 1530, 1745, 2010, 2094, 2278, 2412, 3015, 3060, 3141, 3417, 3490, 4020, 4188, 4556, 5235, 5695, 5933, 6030, 6282, 6834, 6980, 10251, 10470, 11390, 11866, 12060, 12564, 13668, 15705, 17085, 17799, 20502, 20940, 22780, 23383, 23732, 29665, 31410, 34170, 35598, 41004, 46766, 51255, 53397, 59330, 62820, 68340, 70149, 71196, 88995, 93532, 102510, 106794, 116915, 118660, 140298, 177990, 205020, 210447, 213588, 233830, 266985, 280596, 350745, 355980, 397511, 420894, 467660, 533970, 701490, 795022, 841788, 1052235, 1067940, 1192533, 1402980, 1590044, 1987555, 2104470, 2385066, 3577599, 3975110, 4208940, 4770132, 5962665, 7155198, 7950220, 11925330, 14310396, 17887995, 23850660, 35775990, 71551980]

約数ペア:

[(1, 71551980), (2, 35775990), (3, 23850660), (4, 17887995), (5, 14310396), (6, 11925330), (9, 7950220), (10, 7155198), (12, 5962665), (15, 4770132), (17, 4208940), (18, 3975110), (20, 3577599), (30, 2385066), (34, 2104470), (36, 1987555), (45, 1590044), (51, 1402980), (60, 1192533), (67, 1067940), (68, 1052235), (85, 841788), (90, 795022), (102, 701490), (134, 533970), (153, 467660), (170, 420894), (180, 397511), (201, 355980), (204, 350745), (255, 280596), (268, 266985), (306, 233830), (335, 213588), (340, 210447), (349, 205020), (402, 177990), (510, 140298), (603, 118660), (612, 116915), (670, 106794), (698, 102510), (765, 93532), (804, 88995), (1005, 71196), (1020, 70149), (1047, 68340), (1139, 62820), (1206, 59330), (1340, 53397), (1396, 51255), (1530, 46766), (1745, 41004), (2010, 35598), (2094, 34170), (2278, 31410), (2412, 29665), (3015, 23732), (3060, 23383), (3141, 22780), (3417, 20940), (3490, 20502), (4020, 17799), (4188, 17085), (4556, 15705), (5235, 13668), (5695, 12564), (5933, 12060), (6030, 11866), (6282, 11390), (6834, 10470), (6980, 10251)]