205355325

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:236

約数の個数: 144

約数和(自身を含む): 442739520

約数和(自身を除く): 237384195

約数列:

[1, 3, 5, 7, 15, 17, 19, 21, 25, 35, 49, 51, 57, 75, 85, 95, 105, 119, 133, 147, 173, 175, 245, 255, 285, 323, 357, 399, 425, 475, 519, 525, 595, 665, 735, 833, 865, 931, 969, 1211, 1225, 1275, 1425, 1615, 1785, 1995, 2261, 2499, 2595, 2793, 2941, 2975, 3287, 3325, 3633, 3675, 4165, 4325, 4655, 4845, 6055, 6783, 8075, 8477, 8823, 8925, 9861, 9975, 11305, 12495, 12975, 13965, 14705, 15827, 16435, 18165, 20587, 20825, 23009, 23275, 24225, 25431, 30275, 33915, 42385, 44115, 47481, 49305, 55879, 56525, 61761, 62475, 69027, 69825, 73525, 79135, 82175, 90825, 102935, 115045, 127155, 144109, 161063, 167637, 169575, 211925, 220575, 237405, 246525, 279395, 308805, 345135, 391153, 395675, 432327, 483189, 514675, 575225, 635775, 720545, 805315, 838185, 1173459, 1187025, 1396975, 1544025, 1725675, 1955765, 2161635, 2415945, 2738071, 3602725, 4026575, 4190925, 5867295, 8214213, 9778825, 10808175, 12079725, 13690355, 29336475, 41071065, 68451775, 205355325]

約数ペア:

[(1, 205355325), (3, 68451775), (5, 41071065), (7, 29336475), (15, 13690355), (17, 12079725), (19, 10808175), (21, 9778825), (25, 8214213), (35, 5867295), (49, 4190925), (51, 4026575), (57, 3602725), (75, 2738071), (85, 2415945), (95, 2161635), (105, 1955765), (119, 1725675), (133, 1544025), (147, 1396975), (173, 1187025), (175, 1173459), (245, 838185), (255, 805315), (285, 720545), (323, 635775), (357, 575225), (399, 514675), (425, 483189), (475, 432327), (519, 395675), (525, 391153), (595, 345135), (665, 308805), (735, 279395), (833, 246525), (865, 237405), (931, 220575), (969, 211925), (1211, 169575), (1225, 167637), (1275, 161063), (1425, 144109), (1615, 127155), (1785, 115045), (1995, 102935), (2261, 90825), (2499, 82175), (2595, 79135), (2793, 73525), (2941, 69825), (2975, 69027), (3287, 62475), (3325, 61761), (3633, 56525), (3675, 55879), (4165, 49305), (4325, 47481), (4655, 44115), (4845, 42385), (6055, 33915), (6783, 30275), (8075, 25431), (8477, 24225), (8823, 23275), (8925, 23009), (9861, 20825), (9975, 20587), (11305, 18165), (12495, 16435), (12975, 15827), (13965, 14705)]