638578908

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{659}}^1\times {\mathrm{2447}}^1$

素因数の和:3127

約数の個数: 72

約数和(自身を含む): 1764322560

約数和(自身を除く): 1125743652

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396, 659, 1318, 1977, 2447, 2636, 3954, 4894, 5931, 7249, 7341, 7908, 9788, 11862, 14498, 14682, 21747, 22023, 23724, 26917, 28996, 29364, 43494, 44046, 53834, 65241, 80751, 86988, 88092, 107668, 130482, 161502, 242253, 260964, 323004, 484506, 969012, 1612573, 3225146, 4837719, 6450292, 9675438, 14513157, 17738303, 19350876, 29026314, 35476606, 53214909, 58052628, 70953212, 106429818, 159644727, 212859636, 319289454, 638578908]

約数ペア:

[(1, 638578908), (2, 319289454), (3, 212859636), (4, 159644727), (6, 106429818), (9, 70953212), (11, 58052628), (12, 53214909), (18, 35476606), (22, 29026314), (33, 19350876), (36, 17738303), (44, 14513157), (66, 9675438), (99, 6450292), (132, 4837719), (198, 3225146), (396, 1612573), (659, 969012), (1318, 484506), (1977, 323004), (2447, 260964), (2636, 242253), (3954, 161502), (4894, 130482), (5931, 107668), (7249, 88092), (7341, 86988), (7908, 80751), (9788, 65241), (11862, 53834), (14498, 44046), (14682, 43494), (21747, 29364), (22023, 28996), (23724, 26917)]