248710280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:308

約数の個数: 192

約数和(自身を含む): 720498240

約数和(自身を除く): 471787960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 43, 49, 52, 56, 65, 70, 86, 91, 98, 104, 130, 140, 172, 182, 196, 215, 227, 245, 260, 280, 301, 344, 364, 392, 430, 454, 455, 490, 520, 559, 602, 637, 728, 860, 908, 910, 980, 1118, 1135, 1204, 1274, 1505, 1589, 1720, 1816, 1820, 1960, 2107, 2236, 2270, 2408, 2548, 2795, 2951, 3010, 3178, 3185, 3640, 3913, 4214, 4472, 4540, 5096, 5590, 5902, 6020, 6356, 6370, 7826, 7945, 8428, 9080, 9761, 10535, 11123, 11180, 11804, 12040, 12712, 12740, 14755, 15652, 15890, 16856, 19522, 19565, 20657, 21070, 22246, 22360, 23608, 25480, 27391, 29510, 31304, 31780, 39044, 39130, 41314, 42140, 44492, 48805, 54782, 55615, 59020, 63560, 68327, 78088, 78260, 82628, 84280, 88984, 97610, 103285, 109564, 111230, 118040, 126893, 136654, 136955, 144599, 156520, 165256, 195220, 206570, 219128, 222460, 253786, 273308, 273910, 289198, 341635, 390440, 413140, 444920, 478289, 507572, 546616, 547820, 578396, 634465, 683270, 722995, 826280, 888251, 956578, 1015144, 1095640, 1156792, 1268930, 1366540, 1445990, 1776502, 1913156, 2391445, 2537860, 2733080, 2891980, 3553004, 3826312, 4441255, 4782890, 5075720, 5783960, 6217757, 7106008, 8882510, 9565780, 12435514, 17765020, 19131560, 24871028, 31088785, 35530040, 49742056, 62177570, 124355140, 248710280]

約数ペア:

[(1, 248710280), (2, 124355140), (4, 62177570), (5, 49742056), (7, 35530040), (8, 31088785), (10, 24871028), (13, 19131560), (14, 17765020), (20, 12435514), (26, 9565780), (28, 8882510), (35, 7106008), (40, 6217757), (43, 5783960), (49, 5075720), (52, 4782890), (56, 4441255), (65, 3826312), (70, 3553004), (86, 2891980), (91, 2733080), (98, 2537860), (104, 2391445), (130, 1913156), (140, 1776502), (172, 1445990), (182, 1366540), (196, 1268930), (215, 1156792), (227, 1095640), (245, 1015144), (260, 956578), (280, 888251), (301, 826280), (344, 722995), (364, 683270), (392, 634465), (430, 578396), (454, 547820), (455, 546616), (490, 507572), (520, 478289), (559, 444920), (602, 413140), (637, 390440), (728, 341635), (860, 289198), (908, 273910), (910, 273308), (980, 253786), (1118, 222460), (1135, 219128), (1204, 206570), (1274, 195220), (1505, 165256), (1589, 156520), (1720, 144599), (1816, 136955), (1820, 136654), (1960, 126893), (2107, 118040), (2236, 111230), (2270, 109564), (2408, 103285), (2548, 97610), (2795, 88984), (2951, 84280), (3010, 82628), (3178, 78260), (3185, 78088), (3640, 68327), (3913, 63560), (4214, 59020), (4472, 55615), (4540, 54782), (5096, 48805), (5590, 44492), (5902, 42140), (6020, 41314), (6356, 39130), (6370, 39044), (7826, 31780), (7945, 31304), (8428, 29510), (9080, 27391), (9761, 25480), (10535, 23608), (11123, 22360), (11180, 22246), (11804, 21070), (12040, 20657), (12712, 19565), (12740, 19522), (14755, 16856), (15652, 15890)]