19947570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 50181120

約数和(自身を除く): 30233550

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 89, 93, 155, 178, 186, 241, 267, 310, 445, 465, 482, 534, 723, 890, 930, 1205, 1335, 1446, 2410, 2670, 2759, 3615, 5518, 7230, 7471, 8277, 13795, 14942, 16554, 21449, 22413, 27590, 37355, 41385, 42898, 44826, 64347, 74710, 82770, 107245, 112065, 128694, 214490, 224130, 321735, 643470, 664919, 1329838, 1994757, 3324595, 3989514, 6649190, 9973785, 19947570]

約数ペア:

[(1, 19947570), (2, 9973785), (3, 6649190), (5, 3989514), (6, 3324595), (10, 1994757), (15, 1329838), (30, 664919), (31, 643470), (62, 321735), (89, 224130), (93, 214490), (155, 128694), (178, 112065), (186, 107245), (241, 82770), (267, 74710), (310, 64347), (445, 44826), (465, 42898), (482, 41385), (534, 37355), (723, 27590), (890, 22413), (930, 21449), (1205, 16554), (1335, 14942), (1446, 13795), (2410, 8277), (2670, 7471), (2759, 7230), (3615, 5518)]