399009975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:250

約数の個数: 192

約数和(自身を含む): 909941760

約数和(自身を除く): 510931785

約数列:

[1, 3, 5, 7, 13, 15, 17, 19, 21, 25, 35, 39, 51, 57, 65, 75, 85, 91, 95, 105, 119, 133, 175, 181, 195, 221, 247, 255, 273, 285, 323, 325, 357, 399, 425, 455, 475, 525, 543, 595, 663, 665, 741, 905, 969, 975, 1105, 1235, 1267, 1275, 1365, 1425, 1547, 1615, 1729, 1785, 1995, 2261, 2275, 2353, 2715, 2975, 3077, 3315, 3325, 3439, 3705, 3801, 4199, 4525, 4641, 4845, 5187, 5525, 6175, 6335, 6783, 6825, 7059, 7735, 8075, 8645, 8925, 9231, 9975, 10317, 11305, 11765, 12597, 13575, 15385, 16471, 16575, 17195, 18525, 19005, 20995, 21539, 23205, 24073, 24225, 25935, 29393, 31675, 33915, 35295, 38675, 40001, 43225, 44707, 46155, 49413, 51585, 56525, 58463, 58825, 62985, 64617, 72219, 76925, 82355, 85975, 88179, 95025, 104975, 107695, 116025, 120003, 120365, 129675, 134121, 146965, 169575, 175389, 176475, 200005, 223535, 230775, 247065, 257925, 280007, 292315, 312949, 314925, 323085, 361095, 409241, 411775, 440895, 538475, 600015, 601825, 670605, 734825, 760019, 840021, 876945, 938847, 1000025, 1117675, 1227723, 1235325, 1400035, 1461575, 1564745, 1615425, 1805475, 2046205, 2204475, 2280057, 3000075, 3353025, 3800095, 4200105, 4384725, 4694235, 5320133, 6138615, 7000175, 7823725, 10231025, 11400285, 15960399, 19000475, 21000525, 23471175, 26600665, 30693075, 57001425, 79801995, 133003325, 399009975]

約数ペア:

[(1, 399009975), (3, 133003325), (5, 79801995), (7, 57001425), (13, 30693075), (15, 26600665), (17, 23471175), (19, 21000525), (21, 19000475), (25, 15960399), (35, 11400285), (39, 10231025), (51, 7823725), (57, 7000175), (65, 6138615), (75, 5320133), (85, 4694235), (91, 4384725), (95, 4200105), (105, 3800095), (119, 3353025), (133, 3000075), (175, 2280057), (181, 2204475), (195, 2046205), (221, 1805475), (247, 1615425), (255, 1564745), (273, 1461575), (285, 1400035), (323, 1235325), (325, 1227723), (357, 1117675), (399, 1000025), (425, 938847), (455, 876945), (475, 840021), (525, 760019), (543, 734825), (595, 670605), (663, 601825), (665, 600015), (741, 538475), (905, 440895), (969, 411775), (975, 409241), (1105, 361095), (1235, 323085), (1267, 314925), (1275, 312949), (1365, 292315), (1425, 280007), (1547, 257925), (1615, 247065), (1729, 230775), (1785, 223535), (1995, 200005), (2261, 176475), (2275, 175389), (2353, 169575), (2715, 146965), (2975, 134121), (3077, 129675), (3315, 120365), (3325, 120003), (3439, 116025), (3705, 107695), (3801, 104975), (4199, 95025), (4525, 88179), (4641, 85975), (4845, 82355), (5187, 76925), (5525, 72219), (6175, 64617), (6335, 62985), (6783, 58825), (6825, 58463), (7059, 56525), (7735, 51585), (8075, 49413), (8645, 46155), (8925, 44707), (9231, 43225), (9975, 40001), (10317, 38675), (11305, 35295), (11765, 33915), (12597, 31675), (13575, 29393), (15385, 25935), (16471, 24225), (16575, 24073), (17195, 23205), (18525, 21539), (19005, 20995)]