39197380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 89291160

約数和(自身を除く): 50093780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 89, 95, 122, 178, 190, 244, 305, 356, 361, 380, 445, 610, 722, 890, 1159, 1220, 1444, 1691, 1780, 1805, 2318, 3382, 3610, 4636, 5429, 5795, 6764, 7220, 8455, 10858, 11590, 16910, 21716, 22021, 23180, 27145, 32129, 33820, 44042, 54290, 64258, 88084, 103151, 108580, 110105, 128516, 160645, 206302, 220210, 321290, 412604, 440420, 515755, 642580, 1031510, 1959869, 2063020, 3919738, 7839476, 9799345, 19598690, 39197380]

約数ペア:

[(1, 39197380), (2, 19598690), (4, 9799345), (5, 7839476), (10, 3919738), (19, 2063020), (20, 1959869), (38, 1031510), (61, 642580), (76, 515755), (89, 440420), (95, 412604), (122, 321290), (178, 220210), (190, 206302), (244, 160645), (305, 128516), (356, 110105), (361, 108580), (380, 103151), (445, 88084), (610, 64258), (722, 54290), (890, 44042), (1159, 33820), (1220, 32129), (1444, 27145), (1691, 23180), (1780, 22021), (1805, 21716), (2318, 16910), (3382, 11590), (3610, 10858), (4636, 8455), (5429, 7220), (5795, 6764)]