18694860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1$

素因数の和:108

約数の個数: 144

約数和(自身を含む): 59458560

約数和(自身を除く): 40763700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 23, 30, 31, 38, 46, 57, 60, 62, 69, 76, 92, 93, 95, 114, 115, 124, 138, 155, 186, 190, 228, 230, 276, 285, 310, 345, 372, 380, 437, 460, 465, 529, 570, 589, 620, 690, 713, 874, 930, 1058, 1140, 1178, 1311, 1380, 1426, 1587, 1748, 1767, 1860, 2116, 2139, 2185, 2356, 2622, 2645, 2852, 2945, 3174, 3534, 3565, 4278, 4370, 5244, 5290, 5890, 6348, 6555, 7068, 7130, 7935, 8556, 8740, 8835, 10051, 10580, 10695, 11780, 13110, 13547, 14260, 15870, 16399, 17670, 20102, 21390, 26220, 27094, 30153, 31740, 32798, 35340, 40204, 40641, 42780, 49197, 50255, 54188, 60306, 65596, 67735, 81282, 81995, 98394, 100510, 120612, 135470, 150765, 162564, 163990, 196788, 201020, 203205, 245985, 270940, 301530, 311581, 327980, 406410, 491970, 603060, 623162, 812820, 934743, 983940, 1246324, 1557905, 1869486, 3115810, 3738972, 4673715, 6231620, 9347430, 18694860]

約数ペア:

[(1, 18694860), (2, 9347430), (3, 6231620), (4, 4673715), (5, 3738972), (6, 3115810), (10, 1869486), (12, 1557905), (15, 1246324), (19, 983940), (20, 934743), (23, 812820), (30, 623162), (31, 603060), (38, 491970), (46, 406410), (57, 327980), (60, 311581), (62, 301530), (69, 270940), (76, 245985), (92, 203205), (93, 201020), (95, 196788), (114, 163990), (115, 162564), (124, 150765), (138, 135470), (155, 120612), (186, 100510), (190, 98394), (228, 81995), (230, 81282), (276, 67735), (285, 65596), (310, 60306), (345, 54188), (372, 50255), (380, 49197), (437, 42780), (460, 40641), (465, 40204), (529, 35340), (570, 32798), (589, 31740), (620, 30153), (690, 27094), (713, 26220), (874, 21390), (930, 20102), (1058, 17670), (1140, 16399), (1178, 15870), (1311, 14260), (1380, 13547), (1426, 13110), (1587, 11780), (1748, 10695), (1767, 10580), (1860, 10051), (2116, 8835), (2139, 8740), (2185, 8556), (2356, 7935), (2622, 7130), (2645, 7068), (2852, 6555), (2945, 6348), (3174, 5890), (3534, 5290), (3565, 5244), (4278, 4370)]