81123388

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1697}}^1$

素因数の和:1774

約数の個数: 48

約数和(自身を含む): 162600480

約数和(自身を除く): 81477092

約数列:

[1, 2, 4, 17, 19, 34, 37, 38, 68, 74, 76, 148, 323, 629, 646, 703, 1258, 1292, 1406, 1697, 2516, 2812, 3394, 6788, 11951, 23902, 28849, 32243, 47804, 57698, 62789, 64486, 115396, 125578, 128972, 251156, 548131, 1067413, 1096262, 1192991, 2134826, 2192524, 2385982, 4269652, 4771964, 20280847, 40561694, 81123388]

約数ペア:

[(1, 81123388), (2, 40561694), (4, 20280847), (17, 4771964), (19, 4269652), (34, 2385982), (37, 2192524), (38, 2134826), (68, 1192991), (74, 1096262), (76, 1067413), (148, 548131), (323, 251156), (629, 128972), (646, 125578), (703, 115396), (1258, 64486), (1292, 62789), (1406, 57698), (1697, 47804), (2516, 32243), (2812, 28849), (3394, 23902), (6788, 11951)]