15681840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{181}}^1$

素因数の和:235

約数の個数: 120

約数和(自身を含む): 51590448

約数和(自身を除く): 35908608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 181, 190, 228, 240, 285, 304, 361, 362, 380, 456, 543, 570, 722, 724, 760, 905, 912, 1083, 1086, 1140, 1444, 1448, 1520, 1805, 1810, 2166, 2172, 2280, 2715, 2888, 2896, 3439, 3610, 3620, 4332, 4344, 4560, 5415, 5430, 5776, 6878, 7220, 7240, 8664, 8688, 10317, 10830, 10860, 13756, 14440, 14480, 17195, 17328, 20634, 21660, 21720, 27512, 28880, 34390, 41268, 43320, 43440, 51585, 55024, 65341, 68780, 82536, 86640, 103170, 130682, 137560, 165072, 196023, 206340, 261364, 275120, 326705, 392046, 412680, 522728, 653410, 784092, 825360, 980115, 1045456, 1306820, 1568184, 1960230, 2613640, 3136368, 3920460, 5227280, 7840920, 15681840]

約数ペア:

[(1, 15681840), (2, 7840920), (3, 5227280), (4, 3920460), (5, 3136368), (6, 2613640), (8, 1960230), (10, 1568184), (12, 1306820), (15, 1045456), (16, 980115), (19, 825360), (20, 784092), (24, 653410), (30, 522728), (38, 412680), (40, 392046), (48, 326705), (57, 275120), (60, 261364), (76, 206340), (80, 196023), (95, 165072), (114, 137560), (120, 130682), (152, 103170), (181, 86640), (190, 82536), (228, 68780), (240, 65341), (285, 55024), (304, 51585), (361, 43440), (362, 43320), (380, 41268), (456, 34390), (543, 28880), (570, 27512), (722, 21720), (724, 21660), (760, 20634), (905, 17328), (912, 17195), (1083, 14480), (1086, 14440), (1140, 13756), (1444, 10860), (1448, 10830), (1520, 10317), (1805, 8688), (1810, 8664), (2166, 7240), (2172, 7220), (2280, 6878), (2715, 5776), (2888, 5430), (2896, 5415), (3439, 4560), (3610, 4344), (3620, 4332)]