13720980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{359}}^1$

素因数の和:398

約数の個数: 144

約数和(自身を含む): 48263040

約数和(自身を除く): 34542060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 359, 364, 390, 420, 455, 490, 546, 588, 637, 718, 735, 780, 910, 980, 1077, 1092, 1274, 1365, 1436, 1470, 1795, 1820, 1911, 2154, 2513, 2548, 2730, 2940, 3185, 3590, 3822, 4308, 4667, 5026, 5385, 5460, 6370, 7180, 7539, 7644, 9334, 9555, 10052, 10770, 12565, 12740, 14001, 15078, 17591, 18668, 19110, 21540, 23335, 25130, 28002, 30156, 32669, 35182, 37695, 38220, 46670, 50260, 52773, 56004, 65338, 70005, 70364, 75390, 87955, 93340, 98007, 105546, 130676, 140010, 150780, 163345, 175910, 196014, 211092, 228683, 263865, 280020, 326690, 351820, 392028, 457366, 490035, 527730, 653380, 686049, 914732, 980070, 1055460, 1143415, 1372098, 1960140, 2286830, 2744196, 3430245, 4573660, 6860490, 13720980]

約数ペア:

[(1, 13720980), (2, 6860490), (3, 4573660), (4, 3430245), (5, 2744196), (6, 2286830), (7, 1960140), (10, 1372098), (12, 1143415), (13, 1055460), (14, 980070), (15, 914732), (20, 686049), (21, 653380), (26, 527730), (28, 490035), (30, 457366), (35, 392028), (39, 351820), (42, 326690), (49, 280020), (52, 263865), (60, 228683), (65, 211092), (70, 196014), (78, 175910), (84, 163345), (91, 150780), (98, 140010), (105, 130676), (130, 105546), (140, 98007), (147, 93340), (156, 87955), (182, 75390), (195, 70364), (196, 70005), (210, 65338), (245, 56004), (260, 52773), (273, 50260), (294, 46670), (359, 38220), (364, 37695), (390, 35182), (420, 32669), (455, 30156), (490, 28002), (546, 25130), (588, 23335), (637, 21540), (718, 19110), (735, 18668), (780, 17591), (910, 15078), (980, 14001), (1077, 12740), (1092, 12565), (1274, 10770), (1365, 10052), (1436, 9555), (1470, 9334), (1795, 7644), (1820, 7539), (1911, 7180), (2154, 6370), (2513, 5460), (2548, 5385), (2730, 5026), (2940, 4667), (3185, 4308), (3590, 3822)]