421961680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^2$

素因数の和:405

約数の個数: 120

約数和(自身を含む): 1176460416

約数和(自身を除く): 754498736

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 181, 184, 230, 280, 322, 362, 368, 460, 560, 644, 724, 805, 905, 920, 1267, 1288, 1448, 1610, 1810, 1840, 2534, 2576, 2896, 3220, 3620, 4163, 5068, 6335, 6440, 7240, 8326, 10136, 12670, 12880, 14480, 16652, 20272, 20815, 25340, 29141, 32761, 33304, 41630, 50680, 58282, 65522, 66608, 83260, 101360, 116564, 131044, 145705, 163805, 166520, 229327, 233128, 262088, 291410, 327610, 333040, 458654, 466256, 524176, 582820, 655220, 753503, 917308, 1146635, 1165640, 1310440, 1507006, 1834616, 2293270, 2331280, 2620880, 3014012, 3669232, 3767515, 4586540, 5274521, 6028024, 7535030, 9173080, 10549042, 12056048, 15070060, 18346160, 21098084, 26372605, 30140120, 42196168, 52745210, 60280240, 84392336, 105490420, 210980840, 421961680]

約数ペア:

[(1, 421961680), (2, 210980840), (4, 105490420), (5, 84392336), (7, 60280240), (8, 52745210), (10, 42196168), (14, 30140120), (16, 26372605), (20, 21098084), (23, 18346160), (28, 15070060), (35, 12056048), (40, 10549042), (46, 9173080), (56, 7535030), (70, 6028024), (80, 5274521), (92, 4586540), (112, 3767515), (115, 3669232), (140, 3014012), (161, 2620880), (181, 2331280), (184, 2293270), (230, 1834616), (280, 1507006), (322, 1310440), (362, 1165640), (368, 1146635), (460, 917308), (560, 753503), (644, 655220), (724, 582820), (805, 524176), (905, 466256), (920, 458654), (1267, 333040), (1288, 327610), (1448, 291410), (1610, 262088), (1810, 233128), (1840, 229327), (2534, 166520), (2576, 163805), (2896, 145705), (3220, 131044), (3620, 116564), (4163, 101360), (5068, 83260), (6335, 66608), (6440, 65522), (7240, 58282), (8326, 50680), (10136, 41630), (12670, 33304), (12880, 32761), (14480, 29141), (16652, 25340), (20272, 20815)]