685990640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:255

約数の個数: 160

約数和(自身を含む): 1735603200

約数和(自身を除く): 1049612560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 59, 71, 80, 89, 92, 115, 118, 142, 178, 184, 230, 236, 284, 295, 355, 356, 368, 445, 460, 472, 568, 590, 710, 712, 890, 920, 944, 1136, 1180, 1357, 1420, 1424, 1633, 1780, 1840, 2047, 2360, 2714, 2840, 3266, 3560, 4094, 4189, 4720, 5251, 5428, 5680, 6319, 6532, 6785, 7120, 8165, 8188, 8378, 10235, 10502, 10856, 12638, 13064, 13570, 16330, 16376, 16756, 20470, 20945, 21004, 21712, 25276, 26128, 26255, 27140, 31595, 32660, 32752, 33512, 40940, 41890, 42008, 50552, 52510, 54280, 63190, 65320, 67024, 81880, 83780, 84016, 96347, 101104, 105020, 108560, 120773, 126380, 130640, 145337, 163760, 167560, 192694, 210040, 241546, 252760, 290674, 335120, 372821, 385388, 420080, 481735, 483092, 505520, 581348, 603865, 726685, 745642, 770776, 963470, 966184, 1162696, 1207730, 1453370, 1491284, 1541552, 1864105, 1926940, 1932368, 2325392, 2415460, 2906740, 2982568, 3728210, 3853880, 4830920, 5813480, 5965136, 7456420, 7707760, 8574883, 9661840, 11626960, 14912840, 17149766, 29825680, 34299532, 42874415, 68599064, 85748830, 137198128, 171497660, 342995320, 685990640]

約数ペア:

[(1, 685990640), (2, 342995320), (4, 171497660), (5, 137198128), (8, 85748830), (10, 68599064), (16, 42874415), (20, 34299532), (23, 29825680), (40, 17149766), (46, 14912840), (59, 11626960), (71, 9661840), (80, 8574883), (89, 7707760), (92, 7456420), (115, 5965136), (118, 5813480), (142, 4830920), (178, 3853880), (184, 3728210), (230, 2982568), (236, 2906740), (284, 2415460), (295, 2325392), (355, 1932368), (356, 1926940), (368, 1864105), (445, 1541552), (460, 1491284), (472, 1453370), (568, 1207730), (590, 1162696), (710, 966184), (712, 963470), (890, 770776), (920, 745642), (944, 726685), (1136, 603865), (1180, 581348), (1357, 505520), (1420, 483092), (1424, 481735), (1633, 420080), (1780, 385388), (1840, 372821), (2047, 335120), (2360, 290674), (2714, 252760), (2840, 241546), (3266, 210040), (3560, 192694), (4094, 167560), (4189, 163760), (4720, 145337), (5251, 130640), (5428, 126380), (5680, 120773), (6319, 108560), (6532, 105020), (6785, 101104), (7120, 96347), (8165, 84016), (8188, 83780), (8378, 81880), (10235, 67024), (10502, 65320), (10856, 63190), (12638, 54280), (13064, 52510), (13570, 50552), (16330, 42008), (16376, 41890), (16756, 40940), (20470, 33512), (20945, 32752), (21004, 32660), (21712, 31595), (25276, 27140), (26128, 26255)]