20432980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3163}}^1$

素因数の和:3208

約数の個数: 48

約数和(自身を含む): 47839680

約数和(自身を除く): 27406700

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3163, 3230, 6326, 6460, 12652, 15815, 31630, 53771, 60097, 63260, 107542, 120194, 215084, 240388, 268855, 300485, 537710, 600970, 1021649, 1075420, 1201940, 2043298, 4086596, 5108245, 10216490, 20432980]

約数ペア:

[(1, 20432980), (2, 10216490), (4, 5108245), (5, 4086596), (10, 2043298), (17, 1201940), (19, 1075420), (20, 1021649), (34, 600970), (38, 537710), (68, 300485), (76, 268855), (85, 240388), (95, 215084), (170, 120194), (190, 107542), (323, 63260), (340, 60097), (380, 53771), (646, 31630), (1292, 15815), (1615, 12652), (3163, 6460), (3230, 6326)]