80975440

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:274

約数の個数: 160

約数和(自身を含む): 237484800

約数和(自身を除く): 156509360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 227, 245, 260, 280, 343, 364, 392, 454, 455, 490, 520, 560, 637, 686, 728, 784, 908, 910, 980, 1040, 1135, 1274, 1372, 1456, 1589, 1715, 1816, 1820, 1960, 2270, 2548, 2744, 2951, 3178, 3185, 3430, 3632, 3640, 3920, 4459, 4540, 5096, 5488, 5902, 6356, 6370, 6860, 7280, 7945, 8918, 9080, 10192, 11123, 11804, 12712, 12740, 13720, 14755, 15890, 17836, 18160, 20657, 22246, 22295, 23608, 25424, 25480, 27440, 29510, 31780, 35672, 41314, 44492, 44590, 47216, 50960, 55615, 59020, 63560, 71344, 77861, 82628, 88984, 89180, 103285, 111230, 118040, 127120, 144599, 155722, 165256, 177968, 178360, 206570, 222460, 236080, 289198, 311444, 330512, 356720, 389305, 413140, 444920, 578396, 622888, 722995, 778610, 826280, 889840, 1012193, 1156792, 1245776, 1445990, 1557220, 1652560, 2024386, 2313584, 2891980, 3114440, 4048772, 5060965, 5783960, 6228880, 8097544, 10121930, 11567920, 16195088, 20243860, 40487720, 80975440]

約数ペア:

[(1, 80975440), (2, 40487720), (4, 20243860), (5, 16195088), (7, 11567920), (8, 10121930), (10, 8097544), (13, 6228880), (14, 5783960), (16, 5060965), (20, 4048772), (26, 3114440), (28, 2891980), (35, 2313584), (40, 2024386), (49, 1652560), (52, 1557220), (56, 1445990), (65, 1245776), (70, 1156792), (80, 1012193), (91, 889840), (98, 826280), (104, 778610), (112, 722995), (130, 622888), (140, 578396), (182, 444920), (196, 413140), (208, 389305), (227, 356720), (245, 330512), (260, 311444), (280, 289198), (343, 236080), (364, 222460), (392, 206570), (454, 178360), (455, 177968), (490, 165256), (520, 155722), (560, 144599), (637, 127120), (686, 118040), (728, 111230), (784, 103285), (908, 89180), (910, 88984), (980, 82628), (1040, 77861), (1135, 71344), (1274, 63560), (1372, 59020), (1456, 55615), (1589, 50960), (1715, 47216), (1816, 44590), (1820, 44492), (1960, 41314), (2270, 35672), (2548, 31780), (2744, 29510), (2951, 27440), (3178, 25480), (3185, 25424), (3430, 23608), (3632, 22295), (3640, 22246), (3920, 20657), (4459, 18160), (4540, 17836), (5096, 15890), (5488, 14755), (5902, 13720), (6356, 12740), (6370, 12712), (6860, 11804), (7280, 11123), (7945, 10192), (8918, 9080)]