1990679940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{650549}}^1$

素因数の和:650581

約数の個数: 72

約数和(自身を含む): 6393605400

約数和(自身を除く): 4402925460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 650549, 1301098, 1951647, 2602196, 3252745, 3903294, 5854941, 6505490, 7806588, 9758235, 11059333, 11709882, 13010980, 19516470, 22118666, 23419764, 29274705, 33177999, 39032940, 44237332, 55296665, 58549410, 66355998, 99533997, 110593330, 117098820, 132711996, 165889995, 199067994, 221186660, 331779990, 398135988, 497669985, 663559980, 995339970, 1990679940]

約数ペア:

[(1, 1990679940), (2, 995339970), (3, 663559980), (4, 497669985), (5, 398135988), (6, 331779990), (9, 221186660), (10, 199067994), (12, 165889995), (15, 132711996), (17, 117098820), (18, 110593330), (20, 99533997), (30, 66355998), (34, 58549410), (36, 55296665), (45, 44237332), (51, 39032940), (60, 33177999), (68, 29274705), (85, 23419764), (90, 22118666), (102, 19516470), (153, 13010980), (170, 11709882), (180, 11059333), (204, 9758235), (255, 7806588), (306, 6505490), (340, 5854941), (510, 3903294), (612, 3252745), (765, 2602196), (1020, 1951647), (1530, 1301098), (3060, 650549)]