20597850

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1$

素因数の和:541

約数の個数: 144

約数和(自身を含む): 68245632

約数和(自身を除く): 47647782

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 25, 26, 30, 35, 39, 42, 45, 50, 63, 65, 70, 75, 78, 90, 91, 105, 117, 126, 130, 150, 175, 182, 195, 210, 225, 234, 273, 315, 325, 350, 390, 450, 455, 503, 525, 546, 585, 630, 650, 819, 910, 975, 1006, 1050, 1170, 1365, 1509, 1575, 1638, 1950, 2275, 2515, 2730, 2925, 3018, 3150, 3521, 4095, 4527, 4550, 5030, 5850, 6539, 6825, 7042, 7545, 8190, 9054, 10563, 12575, 13078, 13650, 15090, 17605, 19617, 20475, 21126, 22635, 25150, 31689, 32695, 35210, 37725, 39234, 40950, 45270, 45773, 52815, 58851, 63378, 65390, 75450, 88025, 91546, 98085, 105630, 113175, 117702, 137319, 158445, 163475, 176050, 196170, 226350, 228865, 264075, 274638, 294255, 316890, 326950, 411957, 457730, 490425, 528150, 588510, 686595, 792225, 823914, 980850, 1144325, 1373190, 1471275, 1584450, 2059785, 2288650, 2942550, 3432975, 4119570, 6865950, 10298925, 20597850]

約数ペア:

[(1, 20597850), (2, 10298925), (3, 6865950), (5, 4119570), (6, 3432975), (7, 2942550), (9, 2288650), (10, 2059785), (13, 1584450), (14, 1471275), (15, 1373190), (18, 1144325), (21, 980850), (25, 823914), (26, 792225), (30, 686595), (35, 588510), (39, 528150), (42, 490425), (45, 457730), (50, 411957), (63, 326950), (65, 316890), (70, 294255), (75, 274638), (78, 264075), (90, 228865), (91, 226350), (105, 196170), (117, 176050), (126, 163475), (130, 158445), (150, 137319), (175, 117702), (182, 113175), (195, 105630), (210, 98085), (225, 91546), (234, 88025), (273, 75450), (315, 65390), (325, 63378), (350, 58851), (390, 52815), (450, 45773), (455, 45270), (503, 40950), (525, 39234), (546, 37725), (585, 35210), (630, 32695), (650, 31689), (819, 25150), (910, 22635), (975, 21126), (1006, 20475), (1050, 19617), (1170, 17605), (1365, 15090), (1509, 13650), (1575, 13078), (1638, 12575), (1950, 10563), (2275, 9054), (2515, 8190), (2730, 7545), (2925, 7042), (3018, 6825), (3150, 6539), (3521, 5850), (4095, 5030), (4527, 4550)]