21598496620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{3167}}^1$

素因数の和:3463

約数の個数: 96

約数和(自身を含む): 48474961920

約数和(自身を除く): 26876465300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 137, 190, 262, 274, 380, 524, 548, 655, 685, 1310, 1370, 2489, 2603, 2620, 2740, 3167, 4978, 5206, 6334, 9956, 10412, 12445, 12668, 13015, 15835, 17947, 24890, 26030, 31670, 35894, 49780, 52060, 60173, 63340, 71788, 89735, 120346, 179470, 240692, 300865, 340993, 358940, 414877, 433879, 601730, 681986, 829754, 867758, 1203460, 1363972, 1659508, 1704965, 1735516, 2074385, 2169395, 3409930, 4148770, 4338790, 6819860, 7882663, 8243701, 8297540, 8677580, 15765326, 16487402, 31530652, 32974804, 39413315, 41218505, 56838149, 78826630, 82437010, 113676298, 157653260, 164874020, 227352596, 284190745, 568381490, 1079924831, 1136762980, 2159849662, 4319699324, 5399624155, 10799248310, 21598496620]

約数ペア:

[(1, 21598496620), (2, 10799248310), (4, 5399624155), (5, 4319699324), (10, 2159849662), (19, 1136762980), (20, 1079924831), (38, 568381490), (76, 284190745), (95, 227352596), (131, 164874020), (137, 157653260), (190, 113676298), (262, 82437010), (274, 78826630), (380, 56838149), (524, 41218505), (548, 39413315), (655, 32974804), (685, 31530652), (1310, 16487402), (1370, 15765326), (2489, 8677580), (2603, 8297540), (2620, 8243701), (2740, 7882663), (3167, 6819860), (4978, 4338790), (5206, 4148770), (6334, 3409930), (9956, 2169395), (10412, 2074385), (12445, 1735516), (12668, 1704965), (13015, 1659508), (15835, 1363972), (17947, 1203460), (24890, 867758), (26030, 829754), (31670, 681986), (35894, 601730), (49780, 433879), (52060, 414877), (60173, 358940), (63340, 340993), (71788, 300865), (89735, 240692), (120346, 179470)]