257683440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{941}}^1$

素因数の和:1127

約数の個数: 160

約数和(自身を含む): 919512576

約数和(自身を除く): 661829136

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 163, 168, 210, 240, 280, 326, 336, 420, 489, 560, 652, 815, 840, 941, 978, 1141, 1304, 1630, 1680, 1882, 1956, 2282, 2445, 2608, 2823, 3260, 3423, 3764, 3912, 4564, 4705, 4890, 5646, 5705, 6520, 6587, 6846, 7528, 7824, 9128, 9410, 9780, 11292, 11410, 13040, 13174, 13692, 14115, 15056, 17115, 18256, 18820, 19560, 19761, 22584, 22820, 26348, 27384, 28230, 32935, 34230, 37640, 39120, 39522, 45168, 45640, 52696, 54768, 56460, 65870, 68460, 75280, 79044, 91280, 98805, 105392, 112920, 131740, 136920, 153383, 158088, 197610, 225840, 263480, 273840, 306766, 316176, 395220, 460149, 526960, 613532, 766915, 790440, 920298, 1073681, 1227064, 1533830, 1580880, 1840596, 2147362, 2300745, 2454128, 3067660, 3221043, 3681192, 4294724, 4601490, 5368405, 6135320, 6442086, 7362384, 8589448, 9202980, 10736810, 12270640, 12884172, 16105215, 17178896, 18405960, 21473620, 25768344, 32210430, 36811920, 42947240, 51536688, 64420860, 85894480, 128841720, 257683440]

約数ペア:

[(1, 257683440), (2, 128841720), (3, 85894480), (4, 64420860), (5, 51536688), (6, 42947240), (7, 36811920), (8, 32210430), (10, 25768344), (12, 21473620), (14, 18405960), (15, 17178896), (16, 16105215), (20, 12884172), (21, 12270640), (24, 10736810), (28, 9202980), (30, 8589448), (35, 7362384), (40, 6442086), (42, 6135320), (48, 5368405), (56, 4601490), (60, 4294724), (70, 3681192), (80, 3221043), (84, 3067660), (105, 2454128), (112, 2300745), (120, 2147362), (140, 1840596), (163, 1580880), (168, 1533830), (210, 1227064), (240, 1073681), (280, 920298), (326, 790440), (336, 766915), (420, 613532), (489, 526960), (560, 460149), (652, 395220), (815, 316176), (840, 306766), (941, 273840), (978, 263480), (1141, 225840), (1304, 197610), (1630, 158088), (1680, 153383), (1882, 136920), (1956, 131740), (2282, 112920), (2445, 105392), (2608, 98805), (2823, 91280), (3260, 79044), (3423, 75280), (3764, 68460), (3912, 65870), (4564, 56460), (4705, 54768), (4890, 52696), (5646, 45640), (5705, 45168), (6520, 39522), (6587, 39120), (6846, 37640), (7528, 34230), (7824, 32935), (9128, 28230), (9410, 27384), (9780, 26348), (11292, 22820), (11410, 22584), (13040, 19761), (13174, 19560), (13692, 18820), (14115, 18256), (15056, 17115)]