19885740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{419}}^1$

素因数の和:551

約数の個数: 96

約数和(自身を含む): 64350720

約数和(自身を除く): 44464980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 113, 140, 210, 226, 339, 419, 420, 452, 565, 678, 791, 838, 1130, 1257, 1356, 1582, 1676, 1695, 2095, 2260, 2373, 2514, 2933, 3164, 3390, 3955, 4190, 4746, 5028, 5866, 6285, 6780, 7910, 8380, 8799, 9492, 11732, 11865, 12570, 14665, 15820, 17598, 23730, 25140, 29330, 35196, 43995, 47347, 47460, 58660, 87990, 94694, 142041, 175980, 189388, 236735, 284082, 331429, 473470, 568164, 662858, 710205, 946940, 994287, 1325716, 1420410, 1657145, 1988574, 2840820, 3314290, 3977148, 4971435, 6628580, 9942870, 19885740]

約数ペア:

[(1, 19885740), (2, 9942870), (3, 6628580), (4, 4971435), (5, 3977148), (6, 3314290), (7, 2840820), (10, 1988574), (12, 1657145), (14, 1420410), (15, 1325716), (20, 994287), (21, 946940), (28, 710205), (30, 662858), (35, 568164), (42, 473470), (60, 331429), (70, 284082), (84, 236735), (105, 189388), (113, 175980), (140, 142041), (210, 94694), (226, 87990), (339, 58660), (419, 47460), (420, 47347), (452, 43995), (565, 35196), (678, 29330), (791, 25140), (838, 23730), (1130, 17598), (1257, 15820), (1356, 14665), (1582, 12570), (1676, 11865), (1695, 11732), (2095, 9492), (2260, 8799), (2373, 8380), (2514, 7910), (2933, 6780), (3164, 6285), (3390, 5866), (3955, 5028), (4190, 4746)]