16981360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{839}}^1$

素因数の和:886

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 28015760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 839, 880, 920, 1012, 1265, 1678, 1840, 2024, 2530, 3356, 4048, 4195, 5060, 6712, 8390, 9229, 10120, 13424, 16780, 18458, 19297, 20240, 33560, 36916, 38594, 46145, 67120, 73832, 77188, 92290, 96485, 147664, 154376, 184580, 192970, 212267, 308752, 369160, 385940, 424534, 738320, 771880, 849068, 1061335, 1543760, 1698136, 2122670, 3396272, 4245340, 8490680, 16981360]

約数ペア:

[(1, 16981360), (2, 8490680), (4, 4245340), (5, 3396272), (8, 2122670), (10, 1698136), (11, 1543760), (16, 1061335), (20, 849068), (22, 771880), (23, 738320), (40, 424534), (44, 385940), (46, 369160), (55, 308752), (80, 212267), (88, 192970), (92, 184580), (110, 154376), (115, 147664), (176, 96485), (184, 92290), (220, 77188), (230, 73832), (253, 67120), (368, 46145), (440, 38594), (460, 36916), (506, 33560), (839, 20240), (880, 19297), (920, 18458), (1012, 16780), (1265, 13424), (1678, 10120), (1840, 9229), (2024, 8390), (2530, 6712), (3356, 5060), (4048, 4195)]