18777965375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{827}}^1$

素因数の和:1101

約数の個数: 64

約数和(自身を含む): 25714765440

約数和(自身を除く): 6936800065

約数列:

[1, 5, 13, 25, 65, 89, 125, 157, 325, 445, 785, 827, 1157, 1625, 2041, 2225, 3925, 4135, 5785, 10205, 10751, 11125, 13973, 19625, 20675, 28925, 51025, 53755, 69865, 73603, 103375, 129839, 144625, 181649, 255125, 268775, 349325, 368015, 649195, 908245, 956839, 1343875, 1687907, 1746625, 1840075, 3245975, 4541225, 4784195, 8439535, 9200375, 11555671, 16229875, 22706125, 23920975, 42197675, 57778355, 119604875, 150223723, 210988375, 288891775, 751118615, 1444458875, 3755593075, 18777965375]

約数ペア:

[(1, 18777965375), (5, 3755593075), (13, 1444458875), (25, 751118615), (65, 288891775), (89, 210988375), (125, 150223723), (157, 119604875), (325, 57778355), (445, 42197675), (785, 23920975), (827, 22706125), (1157, 16229875), (1625, 11555671), (2041, 9200375), (2225, 8439535), (3925, 4784195), (4135, 4541225), (5785, 3245975), (10205, 1840075), (10751, 1746625), (11125, 1687907), (13973, 1343875), (19625, 956839), (20675, 908245), (28925, 649195), (51025, 368015), (53755, 349325), (69865, 268775), (73603, 255125), (103375, 181649), (129839, 144625)]