19006720

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:531

約数の個数: 72

約数和(自身を含む): 47093760

約数和(自身を除く): 28087040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 479, 496, 620, 640, 958, 992, 1240, 1280, 1916, 1984, 2395, 2480, 3832, 3968, 4790, 4960, 7664, 7936, 9580, 9920, 14849, 15328, 19160, 19840, 29698, 30656, 38320, 39680, 59396, 61312, 74245, 76640, 118792, 122624, 148490, 153280, 237584, 296980, 306560, 475168, 593960, 613120, 950336, 1187920, 1900672, 2375840, 3801344, 4751680, 9503360, 19006720]

約数ペア:

[(1, 19006720), (2, 9503360), (4, 4751680), (5, 3801344), (8, 2375840), (10, 1900672), (16, 1187920), (20, 950336), (31, 613120), (32, 593960), (40, 475168), (62, 306560), (64, 296980), (80, 237584), (124, 153280), (128, 148490), (155, 122624), (160, 118792), (248, 76640), (256, 74245), (310, 61312), (320, 59396), (479, 39680), (496, 38320), (620, 30656), (640, 29698), (958, 19840), (992, 19160), (1240, 15328), (1280, 14849), (1916, 9920), (1984, 9580), (2395, 7936), (2480, 7664), (3832, 4960), (3968, 4790)]