81962580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10271}}^1$

素因数の和:10309

約数の個数: 96

約数和(自身を含む): 276111360

約数和(自身を除く): 194148780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 10271, 20542, 30813, 41084, 51355, 61626, 71897, 102710, 123252, 143794, 154065, 195149, 205420, 215691, 287588, 308130, 359485, 390298, 431382, 585447, 616260, 718970, 780596, 862764, 975745, 1078455, 1170894, 1366043, 1437940, 1951490, 2156910, 2341788, 2732086, 2927235, 3902980, 4098129, 4313820, 5464172, 5854470, 6830215, 8196258, 11708940, 13660430, 16392516, 20490645, 27320860, 40981290, 81962580]

約数ペア:

[(1, 81962580), (2, 40981290), (3, 27320860), (4, 20490645), (5, 16392516), (6, 13660430), (7, 11708940), (10, 8196258), (12, 6830215), (14, 5854470), (15, 5464172), (19, 4313820), (20, 4098129), (21, 3902980), (28, 2927235), (30, 2732086), (35, 2341788), (38, 2156910), (42, 1951490), (57, 1437940), (60, 1366043), (70, 1170894), (76, 1078455), (84, 975745), (95, 862764), (105, 780596), (114, 718970), (133, 616260), (140, 585447), (190, 431382), (210, 390298), (228, 359485), (266, 308130), (285, 287588), (380, 215691), (399, 205420), (420, 195149), (532, 154065), (570, 143794), (665, 123252), (798, 102710), (1140, 71897), (1330, 61626), (1596, 51355), (1995, 41084), (2660, 30813), (3990, 20542), (7980, 10271)]