78829900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:535

約数の個数: 72

約数和(自身を含む): 179988480

約数和(自身を除く): 101158580

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 59, 62, 100, 118, 124, 155, 236, 295, 310, 431, 590, 620, 775, 862, 1180, 1475, 1550, 1724, 1829, 2155, 2950, 3100, 3658, 4310, 5900, 7316, 8620, 9145, 10775, 13361, 18290, 21550, 25429, 26722, 36580, 43100, 45725, 50858, 53444, 66805, 91450, 101716, 127145, 133610, 182900, 254290, 267220, 334025, 508580, 635725, 668050, 788299, 1271450, 1336100, 1576598, 2542900, 3153196, 3941495, 7882990, 15765980, 19707475, 39414950, 78829900]

約数ペア:

[(1, 78829900), (2, 39414950), (4, 19707475), (5, 15765980), (10, 7882990), (20, 3941495), (25, 3153196), (31, 2542900), (50, 1576598), (59, 1336100), (62, 1271450), (100, 788299), (118, 668050), (124, 635725), (155, 508580), (236, 334025), (295, 267220), (310, 254290), (431, 182900), (590, 133610), (620, 127145), (775, 101716), (862, 91450), (1180, 66805), (1475, 53444), (1550, 50858), (1724, 45725), (1829, 43100), (2155, 36580), (2950, 26722), (3100, 25429), (3658, 21550), (4310, 18290), (5900, 13361), (7316, 10775), (8620, 9145)]