11530840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 27216000

約数和(自身を除く): 15685160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 79, 82, 89, 158, 164, 178, 205, 316, 328, 356, 395, 410, 445, 632, 712, 790, 820, 890, 1580, 1640, 1780, 3160, 3239, 3560, 3649, 6478, 7031, 7298, 12956, 14062, 14596, 16195, 18245, 25912, 28124, 29192, 32390, 35155, 36490, 56248, 64780, 70310, 72980, 129560, 140620, 145960, 281240, 288271, 576542, 1153084, 1441355, 2306168, 2882710, 5765420, 11530840]

約数ペア:

[(1, 11530840), (2, 5765420), (4, 2882710), (5, 2306168), (8, 1441355), (10, 1153084), (20, 576542), (40, 288271), (41, 281240), (79, 145960), (82, 140620), (89, 129560), (158, 72980), (164, 70310), (178, 64780), (205, 56248), (316, 36490), (328, 35155), (356, 32390), (395, 29192), (410, 28124), (445, 25912), (632, 18245), (712, 16195), (790, 14596), (820, 14062), (890, 12956), (1580, 7298), (1640, 7031), (1780, 6478), (3160, 3649), (3239, 3560)]