31053880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 128

約数和(自身を含む): 84369600

約数和(自身を除く): 53315720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 61, 65, 88, 89, 104, 110, 122, 130, 143, 178, 220, 244, 260, 286, 305, 356, 440, 445, 488, 520, 572, 610, 671, 712, 715, 793, 890, 979, 1144, 1157, 1220, 1342, 1430, 1586, 1780, 1958, 2314, 2440, 2684, 2860, 3172, 3355, 3560, 3916, 3965, 4628, 4895, 5368, 5429, 5720, 5785, 6344, 6710, 7832, 7930, 8723, 9256, 9790, 10858, 11570, 12727, 13420, 15860, 17446, 19580, 21716, 23140, 25454, 26840, 27145, 31720, 34892, 39160, 43432, 43615, 46280, 50908, 54290, 59719, 63635, 69784, 70577, 87230, 101816, 108580, 119438, 127270, 141154, 174460, 217160, 238876, 254540, 282308, 298595, 348920, 352885, 477752, 509080, 564616, 597190, 705770, 776347, 1194380, 1411540, 1552694, 2388760, 2823080, 3105388, 3881735, 6210776, 7763470, 15526940, 31053880]

約数ペア:

[(1, 31053880), (2, 15526940), (4, 7763470), (5, 6210776), (8, 3881735), (10, 3105388), (11, 2823080), (13, 2388760), (20, 1552694), (22, 1411540), (26, 1194380), (40, 776347), (44, 705770), (52, 597190), (55, 564616), (61, 509080), (65, 477752), (88, 352885), (89, 348920), (104, 298595), (110, 282308), (122, 254540), (130, 238876), (143, 217160), (178, 174460), (220, 141154), (244, 127270), (260, 119438), (286, 108580), (305, 101816), (356, 87230), (440, 70577), (445, 69784), (488, 63635), (520, 59719), (572, 54290), (610, 50908), (671, 46280), (712, 43615), (715, 43432), (793, 39160), (890, 34892), (979, 31720), (1144, 27145), (1157, 26840), (1220, 25454), (1342, 23140), (1430, 21716), (1586, 19580), (1780, 17446), (1958, 15860), (2314, 13420), (2440, 12727), (2684, 11570), (2860, 10858), (3172, 9790), (3355, 9256), (3560, 8723), (3916, 7930), (3965, 7832), (4628, 6710), (4895, 6344), (5368, 5785), (5429, 5720)]