28850560

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:819

約数の個数: 64

約数和(自身を含む): 70196400

約数和(自身を除く): 41345840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 739, 976, 1220, 1478, 1952, 2440, 2956, 3695, 3904, 4880, 5912, 7390, 7808, 9760, 11824, 14780, 19520, 23648, 29560, 39040, 45079, 47296, 59120, 90158, 94592, 118240, 180316, 225395, 236480, 360632, 450790, 472960, 721264, 901580, 1442528, 1803160, 2885056, 3606320, 5770112, 7212640, 14425280, 28850560]

約数ペア:

[(1, 28850560), (2, 14425280), (4, 7212640), (5, 5770112), (8, 3606320), (10, 2885056), (16, 1803160), (20, 1442528), (32, 901580), (40, 721264), (61, 472960), (64, 450790), (80, 360632), (122, 236480), (128, 225395), (160, 180316), (244, 118240), (305, 94592), (320, 90158), (488, 59120), (610, 47296), (640, 45079), (739, 39040), (976, 29560), (1220, 23648), (1478, 19520), (1952, 14780), (2440, 11824), (2956, 9760), (3695, 7808), (3904, 7390), (4880, 5912)]