2019397750

素因数分解:

$2^1\times 5^3\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 3840737472

約数和(自身を除く): 1821339722

約数列:

[1, 2, 5, 10, 25, 50, 125, 131, 197, 250, 262, 313, 394, 626, 655, 985, 1310, 1565, 1970, 3130, 3275, 4925, 6550, 7825, 9850, 15650, 16375, 24625, 25807, 32750, 39125, 41003, 49250, 51614, 61661, 78250, 82006, 123322, 129035, 205015, 258070, 308305, 410030, 616610, 645175, 1025075, 1290350, 1541525, 2050150, 3083050, 3225875, 5125375, 6451750, 7707625, 8077591, 10250750, 15415250, 16155182, 40387955, 80775910, 201939775, 403879550, 1009698875, 2019397750]

約数ペア:

[(1, 2019397750), (2, 1009698875), (5, 403879550), (10, 201939775), (25, 80775910), (50, 40387955), (125, 16155182), (131, 15415250), (197, 10250750), (250, 8077591), (262, 7707625), (313, 6451750), (394, 5125375), (626, 3225875), (655, 3083050), (985, 2050150), (1310, 1541525), (1565, 1290350), (1970, 1025075), (3130, 645175), (3275, 616610), (4925, 410030), (6550, 308305), (7825, 258070), (9850, 205015), (15650, 129035), (16375, 123322), (24625, 82006), (25807, 78250), (32750, 61661), (39125, 51614), (41003, 49250)]