18381720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:377

約数の個数: 128

約数和(自身を含む): 64051200

約数和(自身を除く): 45669480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 79, 84, 105, 120, 140, 158, 168, 210, 237, 277, 280, 316, 395, 420, 474, 553, 554, 632, 790, 831, 840, 948, 1106, 1108, 1185, 1385, 1580, 1659, 1662, 1896, 1939, 2212, 2216, 2370, 2765, 2770, 3160, 3318, 3324, 3878, 4155, 4424, 4740, 5530, 5540, 5817, 6636, 6648, 7756, 8295, 8310, 9480, 9695, 11060, 11080, 11634, 13272, 15512, 16590, 16620, 19390, 21883, 22120, 23268, 29085, 33180, 33240, 38780, 43766, 46536, 58170, 65649, 66360, 77560, 87532, 109415, 116340, 131298, 153181, 175064, 218830, 232680, 262596, 306362, 328245, 437660, 459543, 525192, 612724, 656490, 765905, 875320, 919086, 1225448, 1312980, 1531810, 1838172, 2297715, 2625960, 3063620, 3676344, 4595430, 6127240, 9190860, 18381720]

約数ペア:

[(1, 18381720), (2, 9190860), (3, 6127240), (4, 4595430), (5, 3676344), (6, 3063620), (7, 2625960), (8, 2297715), (10, 1838172), (12, 1531810), (14, 1312980), (15, 1225448), (20, 919086), (21, 875320), (24, 765905), (28, 656490), (30, 612724), (35, 525192), (40, 459543), (42, 437660), (56, 328245), (60, 306362), (70, 262596), (79, 232680), (84, 218830), (105, 175064), (120, 153181), (140, 131298), (158, 116340), (168, 109415), (210, 87532), (237, 77560), (277, 66360), (280, 65649), (316, 58170), (395, 46536), (420, 43766), (474, 38780), (553, 33240), (554, 33180), (632, 29085), (790, 23268), (831, 22120), (840, 21883), (948, 19390), (1106, 16620), (1108, 16590), (1185, 15512), (1385, 13272), (1580, 11634), (1659, 11080), (1662, 11060), (1896, 9695), (1939, 9480), (2212, 8310), (2216, 8295), (2370, 7756), (2765, 6648), (2770, 6636), (3160, 5817), (3318, 5540), (3324, 5530), (3878, 4740), (4155, 4424)]