78419940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2039}}^1$

素因数の和:2692

約数の個数: 48

約数和(自身を含む): 220026240

約数和(自身を除く): 141606300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 641, 1282, 1923, 2039, 2564, 3205, 3846, 4078, 6117, 6410, 7692, 8156, 9615, 10195, 12234, 12820, 19230, 20390, 24468, 30585, 38460, 40780, 61170, 122340, 1306999, 2613998, 3920997, 5227996, 6534995, 7841994, 13069990, 15683988, 19604985, 26139980, 39209970, 78419940]

約数ペア:

[(1, 78419940), (2, 39209970), (3, 26139980), (4, 19604985), (5, 15683988), (6, 13069990), (10, 7841994), (12, 6534995), (15, 5227996), (20, 3920997), (30, 2613998), (60, 1306999), (641, 122340), (1282, 61170), (1923, 40780), (2039, 38460), (2564, 30585), (3205, 24468), (3846, 20390), (4078, 19230), (6117, 12820), (6410, 12234), (7692, 10195), (8156, 9615)]