21178300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1481}}^1$

素因数の和:1519

約数の個数: 72

約数和(自身を含む): 54027792

約数和(自身を除く): 32849492

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 130, 143, 220, 260, 275, 286, 325, 550, 572, 650, 715, 1100, 1300, 1430, 1481, 2860, 2962, 3575, 5924, 7150, 7405, 14300, 14810, 16291, 19253, 29620, 32582, 37025, 38506, 65164, 74050, 77012, 81455, 96265, 148100, 162910, 192530, 211783, 325820, 385060, 407275, 423566, 481325, 814550, 847132, 962650, 1058915, 1629100, 1925300, 2117830, 4235660, 5294575, 10589150, 21178300]

約数ペア:

[(1, 21178300), (2, 10589150), (4, 5294575), (5, 4235660), (10, 2117830), (11, 1925300), (13, 1629100), (20, 1058915), (22, 962650), (25, 847132), (26, 814550), (44, 481325), (50, 423566), (52, 407275), (55, 385060), (65, 325820), (100, 211783), (110, 192530), (130, 162910), (143, 148100), (220, 96265), (260, 81455), (275, 77012), (286, 74050), (325, 65164), (550, 38506), (572, 37025), (650, 32582), (715, 29620), (1100, 19253), (1300, 16291), (1430, 14810), (1481, 14300), (2860, 7405), (2962, 7150), (3575, 5924)]