28196460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{409}}^1$

素因数の和:807

約数の個数: 72

約数和(自身を含む): 85962240

約数和(自身を除く): 57765780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 383, 409, 766, 818, 1149, 1227, 1532, 1636, 1915, 2045, 2298, 2454, 3447, 3681, 3830, 4090, 4596, 4908, 5745, 6135, 6894, 7362, 7660, 8180, 11490, 12270, 13788, 14724, 17235, 18405, 22980, 24540, 34470, 36810, 68940, 73620, 156647, 313294, 469941, 626588, 783235, 939882, 1409823, 1566470, 1879764, 2349705, 2819646, 3132940, 4699410, 5639292, 7049115, 9398820, 14098230, 28196460]

約数ペア:

[(1, 28196460), (2, 14098230), (3, 9398820), (4, 7049115), (5, 5639292), (6, 4699410), (9, 3132940), (10, 2819646), (12, 2349705), (15, 1879764), (18, 1566470), (20, 1409823), (30, 939882), (36, 783235), (45, 626588), (60, 469941), (90, 313294), (180, 156647), (383, 73620), (409, 68940), (766, 36810), (818, 34470), (1149, 24540), (1227, 22980), (1532, 18405), (1636, 17235), (1915, 14724), (2045, 13788), (2298, 12270), (2454, 11490), (3447, 8180), (3681, 7660), (3830, 7362), (4090, 6894), (4596, 6135), (4908, 5745)]