77878900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{853}}^1$

素因数の和:961

約数の個数: 72

約数和(自身を含む): 186800544

約数和(自身を除く): 108921644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 83, 100, 110, 166, 220, 275, 332, 415, 550, 830, 853, 913, 1100, 1660, 1706, 1826, 2075, 3412, 3652, 4150, 4265, 4565, 8300, 8530, 9130, 9383, 17060, 18260, 18766, 21325, 22825, 37532, 42650, 45650, 46915, 70799, 85300, 91300, 93830, 141598, 187660, 234575, 283196, 353995, 469150, 707990, 778789, 938300, 1415980, 1557578, 1769975, 3115156, 3539950, 3893945, 7079900, 7787890, 15575780, 19469725, 38939450, 77878900]

約数ペア:

[(1, 77878900), (2, 38939450), (4, 19469725), (5, 15575780), (10, 7787890), (11, 7079900), (20, 3893945), (22, 3539950), (25, 3115156), (44, 1769975), (50, 1557578), (55, 1415980), (83, 938300), (100, 778789), (110, 707990), (166, 469150), (220, 353995), (275, 283196), (332, 234575), (415, 187660), (550, 141598), (830, 93830), (853, 91300), (913, 85300), (1100, 70799), (1660, 46915), (1706, 45650), (1826, 42650), (2075, 37532), (3412, 22825), (3652, 21325), (4150, 18766), (4265, 18260), (4565, 17060), (8300, 9383), (8530, 9130)]