221356275

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 144

約数和(自身を含む): 461399040

約数和(自身を除く): 240042765

約数列:

[1, 3, 5, 7, 15, 21, 25, 29, 31, 35, 49, 67, 75, 87, 93, 105, 145, 147, 155, 175, 201, 203, 217, 245, 335, 435, 465, 469, 525, 609, 651, 725, 735, 775, 899, 1005, 1015, 1085, 1225, 1407, 1421, 1519, 1675, 1943, 2077, 2175, 2325, 2345, 2697, 3045, 3255, 3283, 3675, 4263, 4495, 4557, 5025, 5075, 5425, 5829, 6231, 6293, 7035, 7105, 7595, 9715, 9849, 10385, 11725, 13485, 13601, 14539, 15225, 16275, 16415, 18879, 21315, 22475, 22785, 29145, 31155, 31465, 35175, 35525, 37975, 40803, 43617, 44051, 48575, 49245, 51925, 60233, 67425, 68005, 72695, 82075, 94395, 95207, 101773, 106575, 113925, 132153, 145725, 155775, 157325, 180699, 204015, 218085, 220255, 246225, 285621, 301165, 305319, 340025, 363475, 421631, 471975, 476035, 508865, 660765, 903495, 1020075, 1090425, 1101275, 1264893, 1428105, 1505825, 1526595, 2108155, 2380175, 2544325, 2951417, 3303825, 4517475, 6324465, 7140525, 7632975, 8854251, 10540775, 14757085, 31622325, 44271255, 73785425, 221356275]

約数ペア:

[(1, 221356275), (3, 73785425), (5, 44271255), (7, 31622325), (15, 14757085), (21, 10540775), (25, 8854251), (29, 7632975), (31, 7140525), (35, 6324465), (49, 4517475), (67, 3303825), (75, 2951417), (87, 2544325), (93, 2380175), (105, 2108155), (145, 1526595), (147, 1505825), (155, 1428105), (175, 1264893), (201, 1101275), (203, 1090425), (217, 1020075), (245, 903495), (335, 660765), (435, 508865), (465, 476035), (469, 471975), (525, 421631), (609, 363475), (651, 340025), (725, 305319), (735, 301165), (775, 285621), (899, 246225), (1005, 220255), (1015, 218085), (1085, 204015), (1225, 180699), (1407, 157325), (1421, 155775), (1519, 145725), (1675, 132153), (1943, 113925), (2077, 106575), (2175, 101773), (2325, 95207), (2345, 94395), (2697, 82075), (3045, 72695), (3255, 68005), (3283, 67425), (3675, 60233), (4263, 51925), (4495, 49245), (4557, 48575), (5025, 44051), (5075, 43617), (5425, 40803), (5829, 37975), (6231, 35525), (6293, 35175), (7035, 31465), (7105, 31155), (7595, 29145), (9715, 22785), (9849, 22475), (10385, 21315), (11725, 18879), (13485, 16415), (13601, 16275), (14539, 15225)]