28038452

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 58413600

約数和(自身を除く): 30375148

約数列:

[1, 2, 4, 13, 19, 26, 37, 38, 52, 59, 74, 76, 118, 148, 169, 236, 247, 338, 481, 494, 676, 703, 767, 962, 988, 1121, 1406, 1534, 1924, 2183, 2242, 2812, 3068, 3211, 4366, 4484, 6253, 6422, 8732, 9139, 9971, 12506, 12844, 14573, 18278, 19942, 25012, 28379, 29146, 36556, 39884, 41477, 56758, 58292, 82954, 113516, 118807, 165908, 189449, 237614, 368927, 378898, 475228, 539201, 737854, 757796, 1078402, 1475708, 2156804, 7009613, 14019226, 28038452]

約数ペア:

[(1, 28038452), (2, 14019226), (4, 7009613), (13, 2156804), (19, 1475708), (26, 1078402), (37, 757796), (38, 737854), (52, 539201), (59, 475228), (74, 378898), (76, 368927), (118, 237614), (148, 189449), (169, 165908), (236, 118807), (247, 113516), (338, 82954), (481, 58292), (494, 56758), (676, 41477), (703, 39884), (767, 36556), (962, 29146), (988, 28379), (1121, 25012), (1406, 19942), (1534, 18278), (1924, 14573), (2183, 12844), (2242, 12506), (2812, 9971), (3068, 9139), (3211, 8732), (4366, 6422), (4484, 6253)]