19610720

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^2$

素因数の和:184

約数の個数: 72

約数和(自身を含む): 49016016

約数和(自身を除く): 29405296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 73, 80, 92, 115, 146, 160, 184, 230, 292, 365, 368, 460, 584, 730, 736, 920, 1168, 1460, 1679, 1840, 2336, 2920, 3358, 3680, 5329, 5840, 6716, 8395, 10658, 11680, 13432, 16790, 21316, 26645, 26864, 33580, 42632, 53290, 53728, 67160, 85264, 106580, 122567, 134320, 170528, 213160, 245134, 268640, 426320, 490268, 612835, 852640, 980536, 1225670, 1961072, 2451340, 3922144, 4902680, 9805360, 19610720]

約数ペア:

[(1, 19610720), (2, 9805360), (4, 4902680), (5, 3922144), (8, 2451340), (10, 1961072), (16, 1225670), (20, 980536), (23, 852640), (32, 612835), (40, 490268), (46, 426320), (73, 268640), (80, 245134), (92, 213160), (115, 170528), (146, 134320), (160, 122567), (184, 106580), (230, 85264), (292, 67160), (365, 53728), (368, 53290), (460, 42632), (584, 33580), (730, 26864), (736, 26645), (920, 21316), (1168, 16790), (1460, 13432), (1679, 11680), (1840, 10658), (2336, 8395), (2920, 6716), (3358, 5840), (3680, 5329)]