79801995

素因数分解:

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

素因数の和:245

約数の個数: 128

約数和(自身を含む): 176117760

約数和(自身を除く): 96315765

約数列:

[1, 3, 5, 7, 13, 15, 17, 19, 21, 35, 39, 51, 57, 65, 85, 91, 95, 105, 119, 133, 181, 195, 221, 247, 255, 273, 285, 323, 357, 399, 455, 543, 595, 663, 665, 741, 905, 969, 1105, 1235, 1267, 1365, 1547, 1615, 1729, 1785, 1995, 2261, 2353, 2715, 3077, 3315, 3439, 3705, 3801, 4199, 4641, 4845, 5187, 6335, 6783, 7059, 7735, 8645, 9231, 10317, 11305, 11765, 12597, 15385, 16471, 17195, 19005, 20995, 21539, 23205, 24073, 25935, 29393, 33915, 35295, 40001, 44707, 46155, 49413, 51585, 58463, 62985, 64617, 72219, 82355, 88179, 107695, 120003, 120365, 134121, 146965, 175389, 200005, 223535, 247065, 280007, 292315, 312949, 323085, 361095, 409241, 440895, 600015, 670605, 760019, 840021, 876945, 938847, 1227723, 1400035, 1564745, 2046205, 2280057, 3800095, 4200105, 4694235, 5320133, 6138615, 11400285, 15960399, 26600665, 79801995]

約数ペア:

[(1, 79801995), (3, 26600665), (5, 15960399), (7, 11400285), (13, 6138615), (15, 5320133), (17, 4694235), (19, 4200105), (21, 3800095), (35, 2280057), (39, 2046205), (51, 1564745), (57, 1400035), (65, 1227723), (85, 938847), (91, 876945), (95, 840021), (105, 760019), (119, 670605), (133, 600015), (181, 440895), (195, 409241), (221, 361095), (247, 323085), (255, 312949), (273, 292315), (285, 280007), (323, 247065), (357, 223535), (399, 200005), (455, 175389), (543, 146965), (595, 134121), (663, 120365), (665, 120003), (741, 107695), (905, 88179), (969, 82355), (1105, 72219), (1235, 64617), (1267, 62985), (1365, 58463), (1547, 51585), (1615, 49413), (1729, 46155), (1785, 44707), (1995, 40001), (2261, 35295), (2353, 33915), (2715, 29393), (3077, 25935), (3315, 24073), (3439, 23205), (3705, 21539), (3801, 20995), (4199, 19005), (4641, 17195), (4845, 16471), (5187, 15385), (6335, 12597), (6783, 11765), (7059, 11305), (7735, 10317), (8645, 9231)]