19909950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:266

約数の個数: 96

約数和(自身を含む): 53568000

約数和(自身を除く): 33658050

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 29, 30, 46, 50, 58, 69, 75, 87, 115, 138, 145, 150, 174, 199, 230, 290, 345, 398, 435, 575, 597, 667, 690, 725, 870, 995, 1150, 1194, 1334, 1450, 1725, 1990, 2001, 2175, 2985, 3335, 3450, 4002, 4350, 4577, 4975, 5771, 5970, 6670, 9154, 9950, 10005, 11542, 13731, 14925, 16675, 17313, 20010, 22885, 27462, 28855, 29850, 33350, 34626, 45770, 50025, 57710, 68655, 86565, 100050, 114425, 132733, 137310, 144275, 173130, 228850, 265466, 288550, 343275, 398199, 432825, 663665, 686550, 796398, 865650, 1327330, 1990995, 3318325, 3981990, 6636650, 9954975, 19909950]

約数ペア:

[(1, 19909950), (2, 9954975), (3, 6636650), (5, 3981990), (6, 3318325), (10, 1990995), (15, 1327330), (23, 865650), (25, 796398), (29, 686550), (30, 663665), (46, 432825), (50, 398199), (58, 343275), (69, 288550), (75, 265466), (87, 228850), (115, 173130), (138, 144275), (145, 137310), (150, 132733), (174, 114425), (199, 100050), (230, 86565), (290, 68655), (345, 57710), (398, 50025), (435, 45770), (575, 34626), (597, 33350), (667, 29850), (690, 28855), (725, 27462), (870, 22885), (995, 20010), (1150, 17313), (1194, 16675), (1334, 14925), (1450, 13731), (1725, 11542), (1990, 10005), (2001, 9950), (2175, 9154), (2985, 6670), (3335, 5970), (3450, 5771), (4002, 4975), (4350, 4577)]