215205900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7883}}^1$

素因数の和:7920

約数の個数: 144

約数和(自身を含む): 766450944

約数和(自身を除く): 551245044

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 25, 26, 28, 30, 35, 39, 42, 50, 52, 60, 65, 70, 75, 78, 84, 91, 100, 105, 130, 140, 150, 156, 175, 182, 195, 210, 260, 273, 300, 325, 350, 364, 390, 420, 455, 525, 546, 650, 700, 780, 910, 975, 1050, 1092, 1300, 1365, 1820, 1950, 2100, 2275, 2730, 3900, 4550, 5460, 6825, 7883, 9100, 13650, 15766, 23649, 27300, 31532, 39415, 47298, 55181, 78830, 94596, 102479, 110362, 118245, 157660, 165543, 197075, 204958, 220724, 236490, 275905, 307437, 331086, 394150, 409916, 472980, 512395, 551810, 591225, 614874, 662172, 717353, 788300, 827715, 1024790, 1103620, 1182450, 1229748, 1379525, 1434706, 1537185, 1655430, 2049580, 2152059, 2364900, 2561975, 2759050, 2869412, 3074370, 3310860, 3586765, 4138575, 4304118, 5123950, 5518100, 6148740, 7173530, 7685925, 8277150, 8608236, 10247900, 10760295, 14347060, 15371850, 16554300, 17933825, 21520590, 30743700, 35867650, 43041180, 53801475, 71735300, 107602950, 215205900]

約数ペア:

[(1, 215205900), (2, 107602950), (3, 71735300), (4, 53801475), (5, 43041180), (6, 35867650), (7, 30743700), (10, 21520590), (12, 17933825), (13, 16554300), (14, 15371850), (15, 14347060), (20, 10760295), (21, 10247900), (25, 8608236), (26, 8277150), (28, 7685925), (30, 7173530), (35, 6148740), (39, 5518100), (42, 5123950), (50, 4304118), (52, 4138575), (60, 3586765), (65, 3310860), (70, 3074370), (75, 2869412), (78, 2759050), (84, 2561975), (91, 2364900), (100, 2152059), (105, 2049580), (130, 1655430), (140, 1537185), (150, 1434706), (156, 1379525), (175, 1229748), (182, 1182450), (195, 1103620), (210, 1024790), (260, 827715), (273, 788300), (300, 717353), (325, 662172), (350, 614874), (364, 591225), (390, 551810), (420, 512395), (455, 472980), (525, 409916), (546, 394150), (650, 331086), (700, 307437), (780, 275905), (910, 236490), (975, 220724), (1050, 204958), (1092, 197075), (1300, 165543), (1365, 157660), (1820, 118245), (1950, 110362), (2100, 102479), (2275, 94596), (2730, 78830), (3900, 55181), (4550, 47298), (5460, 39415), (6825, 31532), (7883, 27300), (9100, 23649), (13650, 15766)]