19935480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:301

約数の個数: 128

約数和(自身を含む): 64696320

約数和(自身を除く): 44760840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 31, 40, 46, 60, 62, 69, 92, 93, 115, 120, 124, 138, 155, 184, 186, 230, 233, 248, 276, 310, 345, 372, 460, 465, 466, 552, 620, 690, 699, 713, 744, 920, 930, 932, 1165, 1240, 1380, 1398, 1426, 1860, 1864, 2139, 2330, 2760, 2796, 2852, 3495, 3565, 3720, 4278, 4660, 5359, 5592, 5704, 6990, 7130, 7223, 8556, 9320, 10695, 10718, 13980, 14260, 14446, 16077, 17112, 21390, 21436, 21669, 26795, 27960, 28520, 28892, 32154, 36115, 42780, 42872, 43338, 53590, 57784, 64308, 72230, 80385, 85560, 86676, 107180, 108345, 128616, 144460, 160770, 166129, 173352, 214360, 216690, 288920, 321540, 332258, 433380, 498387, 643080, 664516, 830645, 866760, 996774, 1329032, 1661290, 1993548, 2491935, 3322580, 3987096, 4983870, 6645160, 9967740, 19935480]

約数ペア:

[(1, 19935480), (2, 9967740), (3, 6645160), (4, 4983870), (5, 3987096), (6, 3322580), (8, 2491935), (10, 1993548), (12, 1661290), (15, 1329032), (20, 996774), (23, 866760), (24, 830645), (30, 664516), (31, 643080), (40, 498387), (46, 433380), (60, 332258), (62, 321540), (69, 288920), (92, 216690), (93, 214360), (115, 173352), (120, 166129), (124, 160770), (138, 144460), (155, 128616), (184, 108345), (186, 107180), (230, 86676), (233, 85560), (248, 80385), (276, 72230), (310, 64308), (345, 57784), (372, 53590), (460, 43338), (465, 42872), (466, 42780), (552, 36115), (620, 32154), (690, 28892), (699, 28520), (713, 27960), (744, 26795), (920, 21669), (930, 21436), (932, 21390), (1165, 17112), (1240, 16077), (1380, 14446), (1398, 14260), (1426, 13980), (1860, 10718), (1864, 10695), (2139, 9320), (2330, 8556), (2760, 7223), (2796, 7130), (2852, 6990), (3495, 5704), (3565, 5592), (3720, 5359), (4278, 4660)]