940487920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{4261}}^1$

素因数の和:4394

約数の個数: 80

約数和(自身を含む): 2283068160

約数和(自身を除く): 1342580240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 89, 124, 155, 178, 248, 310, 356, 445, 496, 620, 712, 890, 1240, 1424, 1780, 2480, 2759, 3560, 4261, 5518, 7120, 8522, 11036, 13795, 17044, 21305, 22072, 27590, 34088, 42610, 44144, 55180, 68176, 85220, 110360, 132091, 170440, 220720, 264182, 340880, 379229, 528364, 660455, 758458, 1056728, 1320910, 1516916, 1896145, 2113456, 2641820, 3033832, 3792290, 5283640, 6067664, 7584580, 10567280, 11756099, 15169160, 23512198, 30338320, 47024396, 58780495, 94048792, 117560990, 188097584, 235121980, 470243960, 940487920]

約数ペア:

[(1, 940487920), (2, 470243960), (4, 235121980), (5, 188097584), (8, 117560990), (10, 94048792), (16, 58780495), (20, 47024396), (31, 30338320), (40, 23512198), (62, 15169160), (80, 11756099), (89, 10567280), (124, 7584580), (155, 6067664), (178, 5283640), (248, 3792290), (310, 3033832), (356, 2641820), (445, 2113456), (496, 1896145), (620, 1516916), (712, 1320910), (890, 1056728), (1240, 758458), (1424, 660455), (1780, 528364), (2480, 379229), (2759, 340880), (3560, 264182), (4261, 220720), (5518, 170440), (7120, 132091), (8522, 110360), (11036, 85220), (13795, 68176), (17044, 55180), (21305, 44144), (22072, 42610), (27590, 34088)]