19701240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:273

約数の個数: 128

約数和(自身を含む): 64895040

約数和(自身を除く): 45193800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 73, 78, 104, 120, 130, 146, 156, 173, 195, 219, 260, 292, 312, 346, 365, 390, 438, 519, 520, 584, 692, 730, 780, 865, 876, 949, 1038, 1095, 1384, 1460, 1560, 1730, 1752, 1898, 2076, 2190, 2249, 2595, 2847, 2920, 3460, 3796, 4152, 4380, 4498, 4745, 5190, 5694, 6747, 6920, 7592, 8760, 8996, 9490, 10380, 11245, 11388, 12629, 13494, 14235, 17992, 18980, 20760, 22490, 22776, 25258, 26988, 28470, 33735, 37887, 37960, 44980, 50516, 53976, 56940, 63145, 67470, 75774, 89960, 101032, 113880, 126290, 134940, 151548, 164177, 189435, 252580, 269880, 303096, 328354, 378870, 492531, 505160, 656708, 757740, 820885, 985062, 1313416, 1515480, 1641770, 1970124, 2462655, 3283540, 3940248, 4925310, 6567080, 9850620, 19701240]

約数ペア:

[(1, 19701240), (2, 9850620), (3, 6567080), (4, 4925310), (5, 3940248), (6, 3283540), (8, 2462655), (10, 1970124), (12, 1641770), (13, 1515480), (15, 1313416), (20, 985062), (24, 820885), (26, 757740), (30, 656708), (39, 505160), (40, 492531), (52, 378870), (60, 328354), (65, 303096), (73, 269880), (78, 252580), (104, 189435), (120, 164177), (130, 151548), (146, 134940), (156, 126290), (173, 113880), (195, 101032), (219, 89960), (260, 75774), (292, 67470), (312, 63145), (346, 56940), (365, 53976), (390, 50516), (438, 44980), (519, 37960), (520, 37887), (584, 33735), (692, 28470), (730, 26988), (780, 25258), (865, 22776), (876, 22490), (949, 20760), (1038, 18980), (1095, 17992), (1384, 14235), (1460, 13494), (1560, 12629), (1730, 11388), (1752, 11245), (1898, 10380), (2076, 9490), (2190, 8996), (2249, 8760), (2595, 7592), (2847, 6920), (2920, 6747), (3460, 5694), (3796, 5190), (4152, 4745), (4380, 4498)]