87384780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{311}}^1$

素因数の和:556

約数の個数: 144

約数和(自身を含む): 305270784

約数和(自身を除く): 217886004

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 223, 252, 311, 315, 420, 446, 622, 630, 669, 892, 933, 1115, 1244, 1260, 1338, 1555, 1561, 1866, 2007, 2177, 2230, 2676, 2799, 3110, 3122, 3345, 3732, 4014, 4354, 4460, 4665, 4683, 5598, 6220, 6244, 6531, 6690, 7805, 8028, 8708, 9330, 9366, 10035, 10885, 11196, 13062, 13380, 13995, 14049, 15610, 18660, 18732, 19593, 20070, 21770, 23415, 26124, 27990, 28098, 31220, 32655, 39186, 40140, 43540, 46830, 55980, 56196, 65310, 69353, 70245, 78372, 93660, 97965, 130620, 138706, 140490, 195930, 208059, 277412, 280980, 346765, 391860, 416118, 485471, 624177, 693530, 832236, 970942, 1040295, 1248354, 1387060, 1456413, 1941884, 2080590, 2427355, 2496708, 2912826, 3120885, 4161180, 4369239, 4854710, 5825652, 6241770, 7282065, 8738478, 9709420, 12483540, 14564130, 17476956, 21846195, 29128260, 43692390, 87384780]

約数ペア:

[(1, 87384780), (2, 43692390), (3, 29128260), (4, 21846195), (5, 17476956), (6, 14564130), (7, 12483540), (9, 9709420), (10, 8738478), (12, 7282065), (14, 6241770), (15, 5825652), (18, 4854710), (20, 4369239), (21, 4161180), (28, 3120885), (30, 2912826), (35, 2496708), (36, 2427355), (42, 2080590), (45, 1941884), (60, 1456413), (63, 1387060), (70, 1248354), (84, 1040295), (90, 970942), (105, 832236), (126, 693530), (140, 624177), (180, 485471), (210, 416118), (223, 391860), (252, 346765), (311, 280980), (315, 277412), (420, 208059), (446, 195930), (622, 140490), (630, 138706), (669, 130620), (892, 97965), (933, 93660), (1115, 78372), (1244, 70245), (1260, 69353), (1338, 65310), (1555, 56196), (1561, 55980), (1866, 46830), (2007, 43540), (2177, 40140), (2230, 39186), (2676, 32655), (2799, 31220), (3110, 28098), (3122, 27990), (3345, 26124), (3732, 23415), (4014, 21770), (4354, 20070), (4460, 19593), (4665, 18732), (4683, 18660), (5598, 15610), (6220, 14049), (6244, 13995), (6531, 13380), (6690, 13062), (7805, 11196), (8028, 10885), (8708, 10035), (9330, 9366)]