257688480

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{283}}^1$

素因数の和:579

約数の個数: 192

約数和(自身を含む): 934391808

約数和(自身を除く): 676703328

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 271, 280, 283, 336, 420, 480, 542, 560, 566, 672, 813, 840, 849, 1084, 1120, 1132, 1355, 1415, 1626, 1680, 1698, 1897, 1981, 2168, 2264, 2710, 2830, 3252, 3360, 3396, 3794, 3962, 4065, 4245, 4336, 4528, 5420, 5660, 5691, 5943, 6504, 6792, 7588, 7924, 8130, 8490, 8672, 9056, 9485, 9905, 10840, 11320, 11382, 11886, 13008, 13584, 15176, 15848, 16260, 16980, 18970, 19810, 21680, 22640, 22764, 23772, 26016, 27168, 28455, 29715, 30352, 31696, 32520, 33960, 37940, 39620, 43360, 45280, 45528, 47544, 56910, 59430, 60704, 63392, 65040, 67920, 75880, 76693, 79240, 91056, 95088, 113820, 118860, 130080, 135840, 151760, 153386, 158480, 182112, 190176, 227640, 230079, 237720, 303520, 306772, 316960, 383465, 455280, 460158, 475440, 536851, 613544, 766930, 910560, 920316, 950880, 1073702, 1150395, 1227088, 1533860, 1610553, 1840632, 2147404, 2300790, 2454176, 2684255, 3067720, 3221106, 3681264, 4294808, 4601580, 5368510, 6135440, 6442212, 7362528, 8052765, 8589616, 9203160, 10737020, 12270880, 12884424, 16105530, 17179232, 18406320, 21474040, 25768848, 32211060, 36812640, 42948080, 51537696, 64422120, 85896160, 128844240, 257688480]

約数ペア:

[(1, 257688480), (2, 128844240), (3, 85896160), (4, 64422120), (5, 51537696), (6, 42948080), (7, 36812640), (8, 32211060), (10, 25768848), (12, 21474040), (14, 18406320), (15, 17179232), (16, 16105530), (20, 12884424), (21, 12270880), (24, 10737020), (28, 9203160), (30, 8589616), (32, 8052765), (35, 7362528), (40, 6442212), (42, 6135440), (48, 5368510), (56, 4601580), (60, 4294808), (70, 3681264), (80, 3221106), (84, 3067720), (96, 2684255), (105, 2454176), (112, 2300790), (120, 2147404), (140, 1840632), (160, 1610553), (168, 1533860), (210, 1227088), (224, 1150395), (240, 1073702), (271, 950880), (280, 920316), (283, 910560), (336, 766930), (420, 613544), (480, 536851), (542, 475440), (560, 460158), (566, 455280), (672, 383465), (813, 316960), (840, 306772), (849, 303520), (1084, 237720), (1120, 230079), (1132, 227640), (1355, 190176), (1415, 182112), (1626, 158480), (1680, 153386), (1698, 151760), (1897, 135840), (1981, 130080), (2168, 118860), (2264, 113820), (2710, 95088), (2830, 91056), (3252, 79240), (3360, 76693), (3396, 75880), (3794, 67920), (3962, 65040), (4065, 63392), (4245, 60704), (4336, 59430), (4528, 56910), (5420, 47544), (5660, 45528), (5691, 45280), (5943, 43360), (6504, 39620), (6792, 37940), (7588, 33960), (7924, 32520), (8130, 31696), (8490, 30352), (8672, 29715), (9056, 28455), (9485, 27168), (9905, 26016), (10840, 23772), (11320, 22764), (11382, 22640), (11886, 21680), (13008, 19810), (13584, 18970), (15176, 16980), (15848, 16260)]