18943760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:157

約数の個数: 120

約数和(自身を含む): 51455040

約数和(自身を除く): 32511280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 103, 110, 121, 152, 176, 190, 206, 209, 220, 242, 304, 380, 412, 418, 440, 484, 515, 605, 760, 824, 836, 880, 968, 1030, 1045, 1133, 1210, 1520, 1648, 1672, 1936, 1957, 2060, 2090, 2266, 2299, 2420, 3344, 3914, 4120, 4180, 4532, 4598, 4840, 5665, 7828, 8240, 8360, 9064, 9196, 9680, 9785, 11330, 11495, 12463, 15656, 16720, 18128, 18392, 19570, 21527, 22660, 22990, 24926, 31312, 36784, 39140, 43054, 45320, 45980, 49852, 62315, 78280, 86108, 90640, 91960, 99704, 107635, 124630, 156560, 172216, 183920, 199408, 215270, 236797, 249260, 344432, 430540, 473594, 498520, 861080, 947188, 997040, 1183985, 1722160, 1894376, 2367970, 3788752, 4735940, 9471880, 18943760]

約数ペア:

[(1, 18943760), (2, 9471880), (4, 4735940), (5, 3788752), (8, 2367970), (10, 1894376), (11, 1722160), (16, 1183985), (19, 997040), (20, 947188), (22, 861080), (38, 498520), (40, 473594), (44, 430540), (55, 344432), (76, 249260), (80, 236797), (88, 215270), (95, 199408), (103, 183920), (110, 172216), (121, 156560), (152, 124630), (176, 107635), (190, 99704), (206, 91960), (209, 90640), (220, 86108), (242, 78280), (304, 62315), (380, 49852), (412, 45980), (418, 45320), (440, 43054), (484, 39140), (515, 36784), (605, 31312), (760, 24926), (824, 22990), (836, 22660), (880, 21527), (968, 19570), (1030, 18392), (1045, 18128), (1133, 16720), (1210, 15656), (1520, 12463), (1648, 11495), (1672, 11330), (1936, 9785), (1957, 9680), (2060, 9196), (2090, 9064), (2266, 8360), (2299, 8240), (2420, 7828), (3344, 5665), (3914, 4840), (4120, 4598), (4180, 4532)]