778980400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{5711}}^1$

素因数の和:5771

約数の個数: 120

約数和(自身を含む): 2107865088

約数和(自身を除く): 1328884688

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 40, 44, 50, 55, 62, 80, 88, 100, 110, 124, 155, 176, 200, 220, 248, 275, 310, 341, 400, 440, 496, 550, 620, 682, 775, 880, 1100, 1240, 1364, 1550, 1705, 2200, 2480, 2728, 3100, 3410, 4400, 5456, 5711, 6200, 6820, 8525, 11422, 12400, 13640, 17050, 22844, 27280, 28555, 34100, 45688, 57110, 62821, 68200, 91376, 114220, 125642, 136400, 142775, 177041, 228440, 251284, 285550, 314105, 354082, 456880, 502568, 571100, 628210, 708164, 885205, 1005136, 1142200, 1256420, 1416328, 1570525, 1770410, 1947451, 2284400, 2512840, 2832656, 3141050, 3540820, 3894902, 4426025, 5025680, 6282100, 7081640, 7789804, 8852050, 9737255, 12564200, 14163280, 15579608, 17704100, 19474510, 25128400, 31159216, 35408200, 38949020, 48686275, 70816400, 77898040, 97372550, 155796080, 194745100, 389490200, 778980400]

約数ペア:

[(1, 778980400), (2, 389490200), (4, 194745100), (5, 155796080), (8, 97372550), (10, 77898040), (11, 70816400), (16, 48686275), (20, 38949020), (22, 35408200), (25, 31159216), (31, 25128400), (40, 19474510), (44, 17704100), (50, 15579608), (55, 14163280), (62, 12564200), (80, 9737255), (88, 8852050), (100, 7789804), (110, 7081640), (124, 6282100), (155, 5025680), (176, 4426025), (200, 3894902), (220, 3540820), (248, 3141050), (275, 2832656), (310, 2512840), (341, 2284400), (400, 1947451), (440, 1770410), (496, 1570525), (550, 1416328), (620, 1256420), (682, 1142200), (775, 1005136), (880, 885205), (1100, 708164), (1240, 628210), (1364, 571100), (1550, 502568), (1705, 456880), (2200, 354082), (2480, 314105), (2728, 285550), (3100, 251284), (3410, 228440), (4400, 177041), (5456, 142775), (5711, 136400), (6200, 125642), (6820, 114220), (8525, 91376), (11422, 68200), (12400, 62821), (13640, 57110), (17050, 45688), (22844, 34100), (27280, 28555)]