81655860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:374

約数の個数: 192

約数和(自身を含む): 278175744

約数和(自身を除く): 196519884

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 31, 33, 39, 44, 52, 55, 60, 62, 65, 66, 78, 93, 110, 124, 130, 132, 143, 155, 156, 165, 186, 195, 220, 260, 286, 307, 310, 330, 341, 372, 390, 403, 429, 465, 572, 614, 620, 660, 682, 715, 780, 806, 858, 921, 930, 1023, 1209, 1228, 1364, 1430, 1535, 1612, 1705, 1716, 1842, 1860, 2015, 2046, 2145, 2418, 2860, 3070, 3377, 3410, 3684, 3991, 4030, 4092, 4290, 4433, 4605, 4836, 5115, 6045, 6140, 6754, 6820, 7982, 8060, 8580, 8866, 9210, 9517, 10131, 10230, 11973, 12090, 13299, 13508, 15964, 16885, 17732, 18420, 19034, 19955, 20262, 20460, 22165, 23946, 24180, 26598, 28551, 33770, 38068, 39910, 40524, 43901, 44330, 47585, 47892, 50655, 53196, 57102, 59865, 66495, 67540, 79820, 87802, 88660, 95170, 101310, 104687, 114204, 119730, 123721, 131703, 132990, 142755, 175604, 190340, 202620, 209374, 219505, 239460, 247442, 263406, 265980, 285510, 314061, 371163, 418748, 439010, 494884, 523435, 526812, 571020, 618605, 628122, 658515, 742326, 878020, 1046870, 1237210, 1256244, 1317030, 1360931, 1484652, 1570305, 1855815, 2093740, 2474420, 2634060, 2721862, 3140610, 3711630, 4082793, 5443724, 6281220, 6804655, 7423260, 8165586, 13609310, 16331172, 20413965, 27218620, 40827930, 81655860]

約数ペア:

[(1, 81655860), (2, 40827930), (3, 27218620), (4, 20413965), (5, 16331172), (6, 13609310), (10, 8165586), (11, 7423260), (12, 6804655), (13, 6281220), (15, 5443724), (20, 4082793), (22, 3711630), (26, 3140610), (30, 2721862), (31, 2634060), (33, 2474420), (39, 2093740), (44, 1855815), (52, 1570305), (55, 1484652), (60, 1360931), (62, 1317030), (65, 1256244), (66, 1237210), (78, 1046870), (93, 878020), (110, 742326), (124, 658515), (130, 628122), (132, 618605), (143, 571020), (155, 526812), (156, 523435), (165, 494884), (186, 439010), (195, 418748), (220, 371163), (260, 314061), (286, 285510), (307, 265980), (310, 263406), (330, 247442), (341, 239460), (372, 219505), (390, 209374), (403, 202620), (429, 190340), (465, 175604), (572, 142755), (614, 132990), (620, 131703), (660, 123721), (682, 119730), (715, 114204), (780, 104687), (806, 101310), (858, 95170), (921, 88660), (930, 87802), (1023, 79820), (1209, 67540), (1228, 66495), (1364, 59865), (1430, 57102), (1535, 53196), (1612, 50655), (1705, 47892), (1716, 47585), (1842, 44330), (1860, 43901), (2015, 40524), (2046, 39910), (2145, 38068), (2418, 33770), (2860, 28551), (3070, 26598), (3377, 24180), (3410, 23946), (3684, 22165), (3991, 20460), (4030, 20262), (4092, 19955), (4290, 19034), (4433, 18420), (4605, 17732), (4836, 16885), (5115, 15964), (6045, 13508), (6140, 13299), (6754, 12090), (6820, 11973), (7982, 10230), (8060, 10131), (8580, 9517), (8866, 9210)]