19201969160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{127979}}^1$

素因数の和:128043

約数の個数: 96

約数和(自身を含む): 49021459200

約数和(自身を除く): 29819490040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 121, 124, 155, 220, 242, 248, 310, 341, 440, 484, 605, 620, 682, 968, 1210, 1240, 1364, 1705, 2420, 2728, 3410, 3751, 4840, 6820, 7502, 13640, 15004, 18755, 30008, 37510, 75020, 127979, 150040, 255958, 511916, 639895, 1023832, 1279790, 1407769, 2559580, 2815538, 3967349, 5119160, 5631076, 7038845, 7934698, 11262152, 14077690, 15485459, 15869396, 19836745, 28155380, 30970918, 31738792, 39673490, 43640839, 56310760, 61941836, 77427295, 79346980, 87281678, 123883672, 154854590, 158693960, 174563356, 218204195, 309709180, 349126712, 436408390, 480049229, 619418360, 872816780, 960098458, 1745633560, 1920196916, 2400246145, 3840393832, 4800492290, 9600984580, 19201969160]

約数ペア:

[(1, 19201969160), (2, 9600984580), (4, 4800492290), (5, 3840393832), (8, 2400246145), (10, 1920196916), (11, 1745633560), (20, 960098458), (22, 872816780), (31, 619418360), (40, 480049229), (44, 436408390), (55, 349126712), (62, 309709180), (88, 218204195), (110, 174563356), (121, 158693960), (124, 154854590), (155, 123883672), (220, 87281678), (242, 79346980), (248, 77427295), (310, 61941836), (341, 56310760), (440, 43640839), (484, 39673490), (605, 31738792), (620, 30970918), (682, 28155380), (968, 19836745), (1210, 15869396), (1240, 15485459), (1364, 14077690), (1705, 11262152), (2420, 7934698), (2728, 7038845), (3410, 5631076), (3751, 5119160), (4840, 3967349), (6820, 2815538), (7502, 2559580), (13640, 1407769), (15004, 1279790), (18755, 1023832), (30008, 639895), (37510, 511916), (75020, 255958), (127979, 150040)]