19290700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 52496640

約数和(自身を除く): 33205940

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 25, 26, 38, 44, 50, 52, 55, 65, 71, 76, 95, 100, 110, 130, 142, 143, 190, 209, 220, 247, 260, 275, 284, 286, 325, 355, 380, 418, 475, 494, 550, 572, 650, 710, 715, 781, 836, 923, 950, 988, 1045, 1100, 1235, 1300, 1349, 1420, 1430, 1562, 1775, 1846, 1900, 2090, 2470, 2698, 2717, 2860, 3124, 3550, 3575, 3692, 3905, 4180, 4615, 4940, 5225, 5396, 5434, 6175, 6745, 7100, 7150, 7810, 9230, 10153, 10450, 10868, 12350, 13490, 13585, 14300, 14839, 15620, 17537, 18460, 19525, 20306, 20900, 23075, 24700, 26980, 27170, 29678, 33725, 35074, 39050, 40612, 46150, 50765, 54340, 59356, 67450, 67925, 70148, 74195, 78100, 87685, 92300, 101530, 134900, 135850, 148390, 175370, 192907, 203060, 253825, 271700, 296780, 350740, 370975, 385814, 438425, 507650, 741950, 771628, 876850, 964535, 1015300, 1483900, 1753700, 1929070, 3858140, 4822675, 9645350, 19290700]

約数ペア:

[(1, 19290700), (2, 9645350), (4, 4822675), (5, 3858140), (10, 1929070), (11, 1753700), (13, 1483900), (19, 1015300), (20, 964535), (22, 876850), (25, 771628), (26, 741950), (38, 507650), (44, 438425), (50, 385814), (52, 370975), (55, 350740), (65, 296780), (71, 271700), (76, 253825), (95, 203060), (100, 192907), (110, 175370), (130, 148390), (142, 135850), (143, 134900), (190, 101530), (209, 92300), (220, 87685), (247, 78100), (260, 74195), (275, 70148), (284, 67925), (286, 67450), (325, 59356), (355, 54340), (380, 50765), (418, 46150), (475, 40612), (494, 39050), (550, 35074), (572, 33725), (650, 29678), (710, 27170), (715, 26980), (781, 24700), (836, 23075), (923, 20900), (950, 20306), (988, 19525), (1045, 18460), (1100, 17537), (1235, 15620), (1300, 14839), (1349, 14300), (1420, 13585), (1430, 13490), (1562, 12350), (1775, 10868), (1846, 10450), (1900, 10153), (2090, 9230), (2470, 7810), (2698, 7150), (2717, 7100), (2860, 6745), (3124, 6175), (3550, 5434), (3575, 5396), (3692, 5225), (3905, 4940), (4180, 4615)]