19404928

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 41616000

約数和(自身を除く): 22211072

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 79, 101, 128, 152, 158, 202, 304, 316, 404, 608, 632, 808, 1216, 1264, 1501, 1616, 1919, 2432, 2528, 3002, 3232, 3838, 5056, 6004, 6464, 7676, 7979, 10112, 12008, 12928, 15352, 15958, 24016, 30704, 31916, 48032, 61408, 63832, 96064, 122816, 127664, 151601, 192128, 245632, 255328, 303202, 510656, 606404, 1021312, 1212808, 2425616, 4851232, 9702464, 19404928]

約数ペア:

[(1, 19404928), (2, 9702464), (4, 4851232), (8, 2425616), (16, 1212808), (19, 1021312), (32, 606404), (38, 510656), (64, 303202), (76, 255328), (79, 245632), (101, 192128), (128, 151601), (152, 127664), (158, 122816), (202, 96064), (304, 63832), (316, 61408), (404, 48032), (608, 31916), (632, 30704), (808, 24016), (1216, 15958), (1264, 15352), (1501, 12928), (1616, 12008), (1919, 10112), (2432, 7979), (2528, 7676), (3002, 6464), (3232, 6004), (3838, 5056)]