20201370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 59996160

約数和(自身を除く): 39794790

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 61, 70, 83, 95, 105, 114, 122, 133, 166, 183, 190, 210, 249, 266, 285, 305, 366, 399, 415, 427, 498, 570, 581, 610, 665, 798, 830, 854, 915, 1159, 1162, 1245, 1281, 1330, 1577, 1743, 1830, 1995, 2135, 2318, 2490, 2562, 2905, 3154, 3477, 3486, 3990, 4270, 4731, 5063, 5795, 5810, 6405, 6954, 7885, 8113, 8715, 9462, 10126, 11039, 11590, 12810, 15189, 15770, 16226, 17385, 17430, 22078, 23655, 24339, 25315, 30378, 33117, 34770, 35441, 40565, 47310, 48678, 50630, 55195, 66234, 70882, 75945, 81130, 96197, 106323, 110390, 121695, 151890, 165585, 177205, 192394, 212646, 243390, 288591, 331170, 354410, 480985, 531615, 577182, 673379, 961970, 1063230, 1346758, 1442955, 2020137, 2885910, 3366895, 4040274, 6733790, 10100685, 20201370]

約数ペア:

[(1, 20201370), (2, 10100685), (3, 6733790), (5, 4040274), (6, 3366895), (7, 2885910), (10, 2020137), (14, 1442955), (15, 1346758), (19, 1063230), (21, 961970), (30, 673379), (35, 577182), (38, 531615), (42, 480985), (57, 354410), (61, 331170), (70, 288591), (83, 243390), (95, 212646), (105, 192394), (114, 177205), (122, 165585), (133, 151890), (166, 121695), (183, 110390), (190, 106323), (210, 96197), (249, 81130), (266, 75945), (285, 70882), (305, 66234), (366, 55195), (399, 50630), (415, 48678), (427, 47310), (498, 40565), (570, 35441), (581, 34770), (610, 33117), (665, 30378), (798, 25315), (830, 24339), (854, 23655), (915, 22078), (1159, 17430), (1162, 17385), (1245, 16226), (1281, 15770), (1330, 15189), (1577, 12810), (1743, 11590), (1830, 11039), (1995, 10126), (2135, 9462), (2318, 8715), (2490, 8113), (2562, 7885), (2905, 6954), (3154, 6405), (3477, 5810), (3486, 5795), (3990, 5063), (4270, 4731)]