40487720

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:272

約数の個数: 128

約数和(自身を含む): 114912000

約数和(自身を除く): 74424280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 227, 245, 260, 280, 343, 364, 392, 454, 455, 490, 520, 637, 686, 728, 908, 910, 980, 1135, 1274, 1372, 1589, 1715, 1816, 1820, 1960, 2270, 2548, 2744, 2951, 3178, 3185, 3430, 3640, 4459, 4540, 5096, 5902, 6356, 6370, 6860, 7945, 8918, 9080, 11123, 11804, 12712, 12740, 13720, 14755, 15890, 17836, 20657, 22246, 22295, 23608, 25480, 29510, 31780, 35672, 41314, 44492, 44590, 55615, 59020, 63560, 77861, 82628, 88984, 89180, 103285, 111230, 118040, 144599, 155722, 165256, 178360, 206570, 222460, 289198, 311444, 389305, 413140, 444920, 578396, 622888, 722995, 778610, 826280, 1012193, 1156792, 1445990, 1557220, 2024386, 2891980, 3114440, 4048772, 5060965, 5783960, 8097544, 10121930, 20243860, 40487720]

約数ペア:

[(1, 40487720), (2, 20243860), (4, 10121930), (5, 8097544), (7, 5783960), (8, 5060965), (10, 4048772), (13, 3114440), (14, 2891980), (20, 2024386), (26, 1557220), (28, 1445990), (35, 1156792), (40, 1012193), (49, 826280), (52, 778610), (56, 722995), (65, 622888), (70, 578396), (91, 444920), (98, 413140), (104, 389305), (130, 311444), (140, 289198), (182, 222460), (196, 206570), (227, 178360), (245, 165256), (260, 155722), (280, 144599), (343, 118040), (364, 111230), (392, 103285), (454, 89180), (455, 88984), (490, 82628), (520, 77861), (637, 63560), (686, 59020), (728, 55615), (908, 44590), (910, 44492), (980, 41314), (1135, 35672), (1274, 31780), (1372, 29510), (1589, 25480), (1715, 23608), (1816, 22295), (1820, 22246), (1960, 20657), (2270, 17836), (2548, 15890), (2744, 14755), (2951, 13720), (3178, 12740), (3185, 12712), (3430, 11804), (3640, 11123), (4459, 9080), (4540, 8918), (5096, 7945), (5902, 6860), (6356, 6370)]