81394740

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:439

約数の個数: 192

約数和(自身を含む): 294981120

約数和(自身を除く): 213586380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 61, 63, 70, 84, 90, 105, 108, 122, 126, 135, 140, 180, 183, 189, 210, 244, 252, 270, 305, 315, 353, 366, 378, 420, 427, 540, 549, 610, 630, 706, 732, 756, 854, 915, 945, 1059, 1098, 1220, 1260, 1281, 1412, 1647, 1708, 1765, 1830, 1890, 2118, 2135, 2196, 2471, 2562, 2745, 3177, 3294, 3530, 3660, 3780, 3843, 4236, 4270, 4942, 5124, 5295, 5490, 6354, 6405, 6588, 7060, 7413, 7686, 8235, 8540, 9531, 9884, 10590, 10980, 11529, 12355, 12708, 12810, 14826, 15372, 15885, 16470, 19062, 19215, 21180, 21533, 22239, 23058, 24710, 25620, 29652, 31770, 32940, 37065, 38124, 38430, 43066, 44478, 46116, 47655, 49420, 57645, 63540, 64599, 66717, 74130, 76860, 86132, 88956, 95310, 107665, 111195, 115290, 129198, 133434, 148260, 150731, 190620, 193797, 215330, 222390, 230580, 258396, 266868, 301462, 322995, 333585, 387594, 430660, 444780, 452193, 581391, 602924, 645990, 667170, 753655, 775188, 904386, 968985, 1162782, 1291980, 1334340, 1356579, 1507310, 1808772, 1937970, 2260965, 2325564, 2713158, 2906955, 3014620, 3875940, 4069737, 4521930, 5426316, 5813910, 6782895, 8139474, 9043860, 11627820, 13565790, 16278948, 20348685, 27131580, 40697370, 81394740]

約数ペア:

[(1, 81394740), (2, 40697370), (3, 27131580), (4, 20348685), (5, 16278948), (6, 13565790), (7, 11627820), (9, 9043860), (10, 8139474), (12, 6782895), (14, 5813910), (15, 5426316), (18, 4521930), (20, 4069737), (21, 3875940), (27, 3014620), (28, 2906955), (30, 2713158), (35, 2325564), (36, 2260965), (42, 1937970), (45, 1808772), (54, 1507310), (60, 1356579), (61, 1334340), (63, 1291980), (70, 1162782), (84, 968985), (90, 904386), (105, 775188), (108, 753655), (122, 667170), (126, 645990), (135, 602924), (140, 581391), (180, 452193), (183, 444780), (189, 430660), (210, 387594), (244, 333585), (252, 322995), (270, 301462), (305, 266868), (315, 258396), (353, 230580), (366, 222390), (378, 215330), (420, 193797), (427, 190620), (540, 150731), (549, 148260), (610, 133434), (630, 129198), (706, 115290), (732, 111195), (756, 107665), (854, 95310), (915, 88956), (945, 86132), (1059, 76860), (1098, 74130), (1220, 66717), (1260, 64599), (1281, 63540), (1412, 57645), (1647, 49420), (1708, 47655), (1765, 46116), (1830, 44478), (1890, 43066), (2118, 38430), (2135, 38124), (2196, 37065), (2471, 32940), (2562, 31770), (2745, 29652), (3177, 25620), (3294, 24710), (3530, 23058), (3660, 22239), (3780, 21533), (3843, 21180), (4236, 19215), (4270, 19062), (4942, 16470), (5124, 15885), (5295, 15372), (5490, 14826), (6354, 12810), (6405, 12708), (6588, 12355), (7060, 11529), (7413, 10980), (7686, 10590), (8235, 9884), (8540, 9531)]