128391840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{547}}^1$

素因数の和:731

約数の個数: 144

約数和(自身を含む): 441631008

約数和(自身を除く): 313239168

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 163, 180, 240, 288, 326, 360, 480, 489, 547, 652, 720, 815, 978, 1094, 1304, 1440, 1467, 1630, 1641, 1956, 2188, 2445, 2608, 2735, 2934, 3260, 3282, 3912, 4376, 4890, 4923, 5216, 5470, 5868, 6520, 6564, 7335, 7824, 8205, 8752, 9780, 9846, 10940, 11736, 13040, 13128, 14670, 15648, 16410, 17504, 19560, 19692, 21880, 23472, 24615, 26080, 26256, 29340, 32820, 39120, 39384, 43760, 46944, 49230, 52512, 58680, 65640, 78240, 78768, 87520, 89161, 98460, 117360, 131280, 157536, 178322, 196920, 234720, 262560, 267483, 356644, 393840, 445805, 534966, 713288, 787680, 802449, 891610, 1069932, 1337415, 1426576, 1604898, 1783220, 2139864, 2674830, 2853152, 3209796, 3566440, 4012245, 4279728, 5349660, 6419592, 7132880, 8024490, 8559456, 10699320, 12839184, 14265760, 16048980, 21398640, 25678368, 32097960, 42797280, 64195920, 128391840]

約数ペア:

[(1, 128391840), (2, 64195920), (3, 42797280), (4, 32097960), (5, 25678368), (6, 21398640), (8, 16048980), (9, 14265760), (10, 12839184), (12, 10699320), (15, 8559456), (16, 8024490), (18, 7132880), (20, 6419592), (24, 5349660), (30, 4279728), (32, 4012245), (36, 3566440), (40, 3209796), (45, 2853152), (48, 2674830), (60, 2139864), (72, 1783220), (80, 1604898), (90, 1426576), (96, 1337415), (120, 1069932), (144, 891610), (160, 802449), (163, 787680), (180, 713288), (240, 534966), (288, 445805), (326, 393840), (360, 356644), (480, 267483), (489, 262560), (547, 234720), (652, 196920), (720, 178322), (815, 157536), (978, 131280), (1094, 117360), (1304, 98460), (1440, 89161), (1467, 87520), (1630, 78768), (1641, 78240), (1956, 65640), (2188, 58680), (2445, 52512), (2608, 49230), (2735, 46944), (2934, 43760), (3260, 39384), (3282, 39120), (3912, 32820), (4376, 29340), (4890, 26256), (4923, 26080), (5216, 24615), (5470, 23472), (5868, 21880), (6520, 19692), (6564, 19560), (7335, 17504), (7824, 16410), (8205, 15648), (8752, 14670), (9780, 13128), (9846, 13040), (10940, 11736)]