728235036

素因数分解:

$2^2\times 3^5\times {\mathrm{37}}^1\times {\mathrm{20249}}^1$

素因数の和:20305

約数の個数: 72

約数和(自身を含む): 1960686000

約数和(自身を除く): 1232450964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 81, 108, 111, 148, 162, 222, 243, 324, 333, 444, 486, 666, 972, 999, 1332, 1998, 2997, 3996, 5994, 8991, 11988, 17982, 20249, 35964, 40498, 60747, 80996, 121494, 182241, 242988, 364482, 546723, 728964, 749213, 1093446, 1498426, 1640169, 2186892, 2247639, 2996852, 3280338, 4495278, 4920507, 6560676, 6742917, 8990556, 9841014, 13485834, 19682028, 20228751, 26971668, 40457502, 60686253, 80915004, 121372506, 182058759, 242745012, 364117518, 728235036]

約数ペア:

[(1, 728235036), (2, 364117518), (3, 242745012), (4, 182058759), (6, 121372506), (9, 80915004), (12, 60686253), (18, 40457502), (27, 26971668), (36, 20228751), (37, 19682028), (54, 13485834), (74, 9841014), (81, 8990556), (108, 6742917), (111, 6560676), (148, 4920507), (162, 4495278), (222, 3280338), (243, 2996852), (324, 2247639), (333, 2186892), (444, 1640169), (486, 1498426), (666, 1093446), (972, 749213), (999, 728964), (1332, 546723), (1998, 364482), (2997, 242988), (3996, 182241), (5994, 121494), (8991, 80996), (11988, 60747), (17982, 40498), (20249, 35964)]